Home / 1,587.40-2,383.84-942.18

Finding the Fourth Proportional to 1,587.40, 2,383.84 and 942.18

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Solution

The fourth proportional to 1,587.40, 2,383.84 and 942.18 is: 1,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.40 : 2,383.84 = 942.18 : x
  2. Step 2: Convert to fraction form
    1,587.40/2,383.84 = 942.18/x
  3. Step 3: Cross multiply
    1,587.40x = 2,383.84 × 942.18
  4. Step 4: Simplify right side
    1,587.40x = 2,246,006.37
  5. Step 5: Solve for x
    x = 2,246,006.37/1,587.40
  6. Step 6: Final answer
    x = 1,414.90

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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.