Home / 1,052.35-1,581.55-1,003.75

Finding the Fourth Proportional to 1,052.35, 1,581.55 and 1,003.75

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Solution

The fourth proportional to 1,052.35, 1,581.55 and 1,003.75 is: 1,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.35 : 1,581.55 = 1,003.75 : x
  2. Step 2: Convert to fraction form
    1,052.35/1,581.55 = 1,003.75/x
  3. Step 3: Cross multiply
    1,052.35x = 1,581.55 × 1,003.75
  4. Step 4: Simplify right side
    1,052.35x = 1,587,474.35
  5. Step 5: Solve for x
    x = 1,587,474.35/1,052.35
  6. Step 6: Final answer
    x = 1,508.51

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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.