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Finding the Fourth Proportional to 6,307.19, 8,640.89 and 6,070.72

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Solution

The fourth proportional to 6,307.19, 8,640.89 and 6,070.72 is: 8,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.19 : 8,640.89 = 6,070.72 : x
  2. Step 2: Convert to fraction form
    6,307.19/8,640.89 = 6,070.72/x
  3. Step 3: Cross multiply
    6,307.19x = 8,640.89 × 6,070.72
  4. Step 4: Simplify right side
    6,307.19x = 52,456,371.78
  5. Step 5: Solve for x
    x = 52,456,371.78/6,307.19
  6. Step 6: Final answer
    x = 8,316.92

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.