Home / 1,325.57-1,987.64-1,016.66

Finding the Fourth Proportional to 1,325.57, 1,987.64 and 1,016.66

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Solution

The fourth proportional to 1,325.57, 1,987.64 and 1,016.66 is: 1,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.57 : 1,987.64 = 1,016.66 : x
  2. Step 2: Convert to fraction form
    1,325.57/1,987.64 = 1,016.66/x
  3. Step 3: Cross multiply
    1,325.57x = 1,987.64 × 1,016.66
  4. Step 4: Simplify right side
    1,325.57x = 2,020,754.08
  5. Step 5: Solve for x
    x = 2,020,754.08/1,325.57
  6. Step 6: Final answer
    x = 1,524.44

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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.