Home / 2,572.43-3,551.48-1,689.77

Finding the Fourth Proportional to 2,572.43, 3,551.48 and 1,689.77

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Solution

The fourth proportional to 2,572.43, 3,551.48 and 1,689.77 is: 2,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.43 : 3,551.48 = 1,689.77 : x
  2. Step 2: Convert to fraction form
    2,572.43/3,551.48 = 1,689.77/x
  3. Step 3: Cross multiply
    2,572.43x = 3,551.48 × 1,689.77
  4. Step 4: Simplify right side
    2,572.43x = 6,001,158.15
  5. Step 5: Solve for x
    x = 6,001,158.15/2,572.43
  6. Step 6: Final answer
    x = 2,332.88

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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.