Home / 1,875.11-2,812.68-1,134.88

Finding the Fourth Proportional to 1,875.11, 2,812.68 and 1,134.88

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Solution

The fourth proportional to 1,875.11, 2,812.68 and 1,134.88 is: 1,702.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.11 : 2,812.68 = 1,134.88 : x
  2. Step 2: Convert to fraction form
    1,875.11/2,812.68 = 1,134.88/x
  3. Step 3: Cross multiply
    1,875.11x = 2,812.68 × 1,134.88
  4. Step 4: Simplify right side
    1,875.11x = 3,192,047.25
  5. Step 5: Solve for x
    x = 3,192,047.25/1,875.11
  6. Step 6: Final answer
    x = 1,702.33

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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.