Home / 1,427.35-2,141.84-1,140.61

Finding the Fourth Proportional to 1,427.35, 2,141.84 and 1,140.61

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Solution

The fourth proportional to 1,427.35, 2,141.84 and 1,140.61 is: 1,711.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.35 : 2,141.84 = 1,140.61 : x
  2. Step 2: Convert to fraction form
    1,427.35/2,141.84 = 1,140.61/x
  3. Step 3: Cross multiply
    1,427.35x = 2,141.84 × 1,140.61
  4. Step 4: Simplify right side
    1,427.35x = 2,443,004.12
  5. Step 5: Solve for x
    x = 2,443,004.12/1,427.35
  6. Step 6: Final answer
    x = 1,711.57

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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.