Home / 2,687.16-3,700.60-2,419.32

Finding the Fourth Proportional to 2,687.16, 3,700.60 and 2,419.32

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Solution

The fourth proportional to 2,687.16, 3,700.60 and 2,419.32 is: 3,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.16 : 3,700.60 = 2,419.32 : x
  2. Step 2: Convert to fraction form
    2,687.16/3,700.60 = 2,419.32/x
  3. Step 3: Cross multiply
    2,687.16x = 3,700.60 × 2,419.32
  4. Step 4: Simplify right side
    2,687.16x = 8,952,935.59
  5. Step 5: Solve for x
    x = 8,952,935.59/2,687.16
  6. Step 6: Final answer
    x = 3,331.75

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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.