Home / 6,605.16-9,115.02-3,952.80

Finding the Fourth Proportional to 6,605.16, 9,115.02 and 3,952.80

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Solution

The fourth proportional to 6,605.16, 9,115.02 and 3,952.80 is: 5,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.16 : 9,115.02 = 3,952.80 : x
  2. Step 2: Convert to fraction form
    6,605.16/9,115.02 = 3,952.80/x
  3. Step 3: Cross multiply
    6,605.16x = 9,115.02 × 3,952.80
  4. Step 4: Simplify right side
    6,605.16x = 36,029,851.06
  5. Step 5: Solve for x
    x = 36,029,851.06/6,605.16
  6. Step 6: Final answer
    x = 5,454.80

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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.