Home / 2,687.20-3,700.56-2,465.44

Finding the Fourth Proportional to 2,687.20, 3,700.56 and 2,465.44

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Solution

The fourth proportional to 2,687.20, 3,700.56 and 2,465.44 is: 3,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.20 : 3,700.56 = 2,465.44 : x
  2. Step 2: Convert to fraction form
    2,687.20/3,700.56 = 2,465.44/x
  3. Step 3: Cross multiply
    2,687.20x = 3,700.56 × 2,465.44
  4. Step 4: Simplify right side
    2,687.20x = 9,123,508.65
  5. Step 5: Solve for x
    x = 9,123,508.65/2,687.20
  6. Step 6: Final answer
    x = 3,395.17

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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.