Home / 6,315.19-8,717.90-4,499.39

Finding the Fourth Proportional to 6,315.19, 8,717.90 and 4,499.39

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Solution

The fourth proportional to 6,315.19, 8,717.90 and 4,499.39 is: 6,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.19 : 8,717.90 = 4,499.39 : x
  2. Step 2: Convert to fraction form
    6,315.19/8,717.90 = 4,499.39/x
  3. Step 3: Cross multiply
    6,315.19x = 8,717.90 × 4,499.39
  4. Step 4: Simplify right side
    6,315.19x = 39,225,232.08
  5. Step 5: Solve for x
    x = 39,225,232.08/6,315.19
  6. Step 6: Final answer
    x = 6,211.25

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.