Home / 1,132.18-1,698.54-352.15

Finding the Fourth Proportional to 1,132.18, 1,698.54 and 352.15

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Solution

The fourth proportional to 1,132.18, 1,698.54 and 352.15 is: 528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.18 : 1,698.54 = 352.15 : x
  2. Step 2: Convert to fraction form
    1,132.18/1,698.54 = 352.15/x
  3. Step 3: Cross multiply
    1,132.18x = 1,698.54 × 352.15
  4. Step 4: Simplify right side
    1,132.18x = 598,140.86
  5. Step 5: Solve for x
    x = 598,140.86/1,132.18
  6. Step 6: Final answer
    x = 528.31

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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.