Home / 1,555.09-2,332.73-581.11

Finding the Fourth Proportional to 1,555.09, 2,332.73 and 581.11

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Solution

The fourth proportional to 1,555.09, 2,332.73 and 581.11 is: 871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.09 : 2,332.73 = 581.11 : x
  2. Step 2: Convert to fraction form
    1,555.09/2,332.73 = 581.11/x
  3. Step 3: Cross multiply
    1,555.09x = 2,332.73 × 581.11
  4. Step 4: Simplify right side
    1,555.09x = 1,355,572.73
  5. Step 5: Solve for x
    x = 1,355,572.73/1,555.09
  6. Step 6: Final answer
    x = 871.70

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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.