Home / 1,555.86-2,332.28-581.70

Finding the Fourth Proportional to 1,555.86, 2,332.28 and 581.70

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Solution

The fourth proportional to 1,555.86, 2,332.28 and 581.70 is: 871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.86 : 2,332.28 = 581.70 : x
  2. Step 2: Convert to fraction form
    1,555.86/2,332.28 = 581.70/x
  3. Step 3: Cross multiply
    1,555.86x = 2,332.28 × 581.70
  4. Step 4: Simplify right side
    1,555.86x = 1,356,687.28
  5. Step 5: Solve for x
    x = 1,356,687.28/1,555.86
  6. Step 6: Final answer
    x = 871.99

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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.