Home / 1,148.14-1,722.18-282.43

Finding the Fourth Proportional to 1,148.14, 1,722.18 and 282.43

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Solution

The fourth proportional to 1,148.14, 1,722.18 and 282.43 is: 423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.14 : 1,722.18 = 282.43 : x
  2. Step 2: Convert to fraction form
    1,148.14/1,722.18 = 282.43/x
  3. Step 3: Cross multiply
    1,148.14x = 1,722.18 × 282.43
  4. Step 4: Simplify right side
    1,148.14x = 486,395.30
  5. Step 5: Solve for x
    x = 486,395.30/1,148.14
  6. Step 6: Final answer
    x = 423.64

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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.