Home / 1,587.33-2,190.20-923.85

Finding the Fourth Proportional to 1,587.33, 2,190.20 and 923.85

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Solution

The fourth proportional to 1,587.33, 2,190.20 and 923.85 is: 1,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.33 : 2,190.20 = 923.85 : x
  2. Step 2: Convert to fraction form
    1,587.33/2,190.20 = 923.85/x
  3. Step 3: Cross multiply
    1,587.33x = 2,190.20 × 923.85
  4. Step 4: Simplify right side
    1,587.33x = 2,023,411.65
  5. Step 5: Solve for x
    x = 2,023,411.65/1,587.33
  6. Step 6: Final answer
    x = 1,274.73

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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.