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Finding the Fourth Proportional to 6,781.50, 9,359.59 and 4,655.28

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Solution

The fourth proportional to 6,781.50, 9,359.59 and 4,655.28 is: 6,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.50 : 9,359.59 = 4,655.28 : x
  2. Step 2: Convert to fraction form
    6,781.50/9,359.59 = 4,655.28/x
  3. Step 3: Cross multiply
    6,781.50x = 9,359.59 × 4,655.28
  4. Step 4: Simplify right side
    6,781.50x = 43,571,512.14
  5. Step 5: Solve for x
    x = 43,571,512.14/6,781.50
  6. Step 6: Final answer
    x = 6,425.06

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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.