Home / 3,587.96-5,382.28-1,247.60

Finding the Fourth Proportional to 3,587.96, 5,382.28 and 1,247.60

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Solution

The fourth proportional to 3,587.96, 5,382.28 and 1,247.60 is: 1,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.96 : 5,382.28 = 1,247.60 : x
  2. Step 2: Convert to fraction form
    3,587.96/5,382.28 = 1,247.60/x
  3. Step 3: Cross multiply
    3,587.96x = 5,382.28 × 1,247.60
  4. Step 4: Simplify right side
    3,587.96x = 6,714,932.53
  5. Step 5: Solve for x
    x = 6,714,932.53/3,587.96
  6. Step 6: Final answer
    x = 1,871.52

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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.