Home / 3,247.02-4,480.64-1,987.56

Finding the Fourth Proportional to 3,247.02, 4,480.64 and 1,987.56

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Solution

The fourth proportional to 3,247.02, 4,480.64 and 1,987.56 is: 2,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.02 : 4,480.64 = 1,987.56 : x
  2. Step 2: Convert to fraction form
    3,247.02/4,480.64 = 1,987.56/x
  3. Step 3: Cross multiply
    3,247.02x = 4,480.64 × 1,987.56
  4. Step 4: Simplify right side
    3,247.02x = 8,905,530.90
  5. Step 5: Solve for x
    x = 8,905,530.90/3,247.02
  6. Step 6: Final answer
    x = 2,742.68

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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.