Home / 1,534.72-2,301.35-918.71

Finding the Fourth Proportional to 1,534.72, 2,301.35 and 918.71

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Solution

The fourth proportional to 1,534.72, 2,301.35 and 918.71 is: 1,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.72 : 2,301.35 = 918.71 : x
  2. Step 2: Convert to fraction form
    1,534.72/2,301.35 = 918.71/x
  3. Step 3: Cross multiply
    1,534.72x = 2,301.35 × 918.71
  4. Step 4: Simplify right side
    1,534.72x = 2,114,268.66
  5. Step 5: Solve for x
    x = 2,114,268.66/1,534.72
  6. Step 6: Final answer
    x = 1,377.63

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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.