Home / 6,490.80-9,731.40-2,593.20

Finding the Fourth Proportional to 6,490.80, 9,731.40 and 2,593.20

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Solution

The fourth proportional to 6,490.80, 9,731.40 and 2,593.20 is: 3,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.80 : 9,731.40 = 2,593.20 : x
  2. Step 2: Convert to fraction form
    6,490.80/9,731.40 = 2,593.20/x
  3. Step 3: Cross multiply
    6,490.80x = 9,731.40 × 2,593.20
  4. Step 4: Simplify right side
    6,490.80x = 25,235,466.48
  5. Step 5: Solve for x
    x = 25,235,466.48/6,490.80
  6. Step 6: Final answer
    x = 3,887.88

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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.