Home / 3,437.25-5,155.95-1,128.75

Finding the Fourth Proportional to 3,437.25, 5,155.95 and 1,128.75

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Solution

The fourth proportional to 3,437.25, 5,155.95 and 1,128.75 is: 1,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.25 : 5,155.95 = 1,128.75 : x
  2. Step 2: Convert to fraction form
    3,437.25/5,155.95 = 1,128.75/x
  3. Step 3: Cross multiply
    3,437.25x = 5,155.95 × 1,128.75
  4. Step 4: Simplify right side
    3,437.25x = 5,819,778.56
  5. Step 5: Solve for x
    x = 5,819,778.56/3,437.25
  6. Step 6: Final answer
    x = 1,693.15

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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.