Home / 1,402.91-2,105.12-581.75

Finding the Fourth Proportional to 1,402.91, 2,105.12 and 581.75

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Solution

The fourth proportional to 1,402.91, 2,105.12 and 581.75 is: 872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.91 : 2,105.12 = 581.75 : x
  2. Step 2: Convert to fraction form
    1,402.91/2,105.12 = 581.75/x
  3. Step 3: Cross multiply
    1,402.91x = 2,105.12 × 581.75
  4. Step 4: Simplify right side
    1,402.91x = 1,224,652.38
  5. Step 5: Solve for x
    x = 1,224,652.38/1,402.91
  6. Step 6: Final answer
    x = 872.94

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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.