Home / 1,117.60-1,542.03-941.26

Finding the Fourth Proportional to 1,117.60, 1,542.03 and 941.26

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Solution

The fourth proportional to 1,117.60, 1,542.03 and 941.26 is: 1,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.60 : 1,542.03 = 941.26 : x
  2. Step 2: Convert to fraction form
    1,117.60/1,542.03 = 941.26/x
  3. Step 3: Cross multiply
    1,117.60x = 1,542.03 × 941.26
  4. Step 4: Simplify right side
    1,117.60x = 1,451,451.16
  5. Step 5: Solve for x
    x = 1,451,451.16/1,117.60
  6. Step 6: Final answer
    x = 1,298.72

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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.