Home / 1,402.26-2,102.23-581.12

Finding the Fourth Proportional to 1,402.26, 2,102.23 and 581.12

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Solution

The fourth proportional to 1,402.26, 2,102.23 and 581.12 is: 871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.26 : 2,102.23 = 581.12 : x
  2. Step 2: Convert to fraction form
    1,402.26/2,102.23 = 581.12/x
  3. Step 3: Cross multiply
    1,402.26x = 2,102.23 × 581.12
  4. Step 4: Simplify right side
    1,402.26x = 1,221,647.90
  5. Step 5: Solve for x
    x = 1,221,647.90/1,402.26
  6. Step 6: Final answer
    x = 871.20

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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.