Home / 1,177.26-1,624.60-711.42

Finding the Fourth Proportional to 1,177.26, 1,624.60 and 711.42

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Solution

The fourth proportional to 1,177.26, 1,624.60 and 711.42 is: 981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.26 : 1,624.60 = 711.42 : x
  2. Step 2: Convert to fraction form
    1,177.26/1,624.60 = 711.42/x
  3. Step 3: Cross multiply
    1,177.26x = 1,624.60 × 711.42
  4. Step 4: Simplify right side
    1,177.26x = 1,155,772.93
  5. Step 5: Solve for x
    x = 1,155,772.93/1,177.26
  6. Step 6: Final answer
    x = 981.75

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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.