Home / 1,131.26-1,697.30-473.20

Finding the Fourth Proportional to 1,131.26, 1,697.30 and 473.20

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Solution

The fourth proportional to 1,131.26, 1,697.30 and 473.20 is: 709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.26 : 1,697.30 = 473.20 : x
  2. Step 2: Convert to fraction form
    1,131.26/1,697.30 = 473.20/x
  3. Step 3: Cross multiply
    1,131.26x = 1,697.30 × 473.20
  4. Step 4: Simplify right side
    1,131.26x = 803,162.36
  5. Step 5: Solve for x
    x = 803,162.36/1,131.26
  6. Step 6: Final answer
    x = 709.97

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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.