Home / 1,587.96-2,381.10-1,040.44

Finding the Fourth Proportional to 1,587.96, 2,381.10 and 1,040.44

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Solution

The fourth proportional to 1,587.96, 2,381.10 and 1,040.44 is: 1,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.96 : 2,381.10 = 1,040.44 : x
  2. Step 2: Convert to fraction form
    1,587.96/2,381.10 = 1,040.44/x
  3. Step 3: Cross multiply
    1,587.96x = 2,381.10 × 1,040.44
  4. Step 4: Simplify right side
    1,587.96x = 2,477,391.68
  5. Step 5: Solve for x
    x = 2,477,391.68/1,587.96
  6. Step 6: Final answer
    x = 1,560.11

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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.