Home / 2,171.17-3,255.40-1,132.35

Finding the Fourth Proportional to 2,171.17, 3,255.40 and 1,132.35

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Solution

The fourth proportional to 2,171.17, 3,255.40 and 1,132.35 is: 1,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.17 : 3,255.40 = 1,132.35 : x
  2. Step 2: Convert to fraction form
    2,171.17/3,255.40 = 1,132.35/x
  3. Step 3: Cross multiply
    2,171.17x = 3,255.40 × 1,132.35
  4. Step 4: Simplify right side
    2,171.17x = 3,686,252.19
  5. Step 5: Solve for x
    x = 3,686,252.19/2,171.17
  6. Step 6: Final answer
    x = 1,697.82

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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.