Home / 1,177.04-1,624.23-645.92

Finding the Fourth Proportional to 1,177.04, 1,624.23 and 645.92

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Solution

The fourth proportional to 1,177.04, 1,624.23 and 645.92 is: 891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.04 : 1,624.23 = 645.92 : x
  2. Step 2: Convert to fraction form
    1,177.04/1,624.23 = 645.92/x
  3. Step 3: Cross multiply
    1,177.04x = 1,624.23 × 645.92
  4. Step 4: Simplify right side
    1,177.04x = 1,049,120.61
  5. Step 5: Solve for x
    x = 1,049,120.61/1,177.04
  6. Step 6: Final answer
    x = 891.32

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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.