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Finding the Fourth Proportional to 6,307.40, 9,461.10 and 5,772.80

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Solution

The fourth proportional to 6,307.40, 9,461.10 and 5,772.80 is: 8,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.40 : 9,461.10 = 5,772.80 : x
  2. Step 2: Convert to fraction form
    6,307.40/9,461.10 = 5,772.80/x
  3. Step 3: Cross multiply
    6,307.40x = 9,461.10 × 5,772.80
  4. Step 4: Simplify right side
    6,307.40x = 54,617,038.08
  5. Step 5: Solve for x
    x = 54,617,038.08/6,307.40
  6. Step 6: Final answer
    x = 8,659.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.