Home / 3,427.02-5,139.24-1,672.80

Finding the Fourth Proportional to 3,427.02, 5,139.24 and 1,672.80

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Solution

The fourth proportional to 3,427.02, 5,139.24 and 1,672.80 is: 2,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.02 : 5,139.24 = 1,672.80 : x
  2. Step 2: Convert to fraction form
    3,427.02/5,139.24 = 1,672.80/x
  3. Step 3: Cross multiply
    3,427.02x = 5,139.24 × 1,672.80
  4. Step 4: Simplify right side
    3,427.02x = 8,596,920.67
  5. Step 5: Solve for x
    x = 8,596,920.67/3,427.02
  6. Step 6: Final answer
    x = 2,508.57

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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.