Home / 1,572.17-2,357.87-571.35

Finding the Fourth Proportional to 1,572.17, 2,357.87 and 571.35

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Solution

The fourth proportional to 1,572.17, 2,357.87 and 571.35 is: 856.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.17 : 2,357.87 = 571.35 : x
  2. Step 2: Convert to fraction form
    1,572.17/2,357.87 = 571.35/x
  3. Step 3: Cross multiply
    1,572.17x = 2,357.87 × 571.35
  4. Step 4: Simplify right side
    1,572.17x = 1,347,166.17
  5. Step 5: Solve for x
    x = 1,347,166.17/1,572.17
  6. Step 6: Final answer
    x = 856.89

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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.