Home / 1,532.93-2,115.60-869.82

Finding the Fourth Proportional to 1,532.93, 2,115.60 and 869.82

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Solution

The fourth proportional to 1,532.93, 2,115.60 and 869.82 is: 1,200.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.93 : 2,115.60 = 869.82 : x
  2. Step 2: Convert to fraction form
    1,532.93/2,115.60 = 869.82/x
  3. Step 3: Cross multiply
    1,532.93x = 2,115.60 × 869.82
  4. Step 4: Simplify right side
    1,532.93x = 1,840,191.19
  5. Step 5: Solve for x
    x = 1,840,191.19/1,532.93
  6. Step 6: Final answer
    x = 1,200.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.