Home / 3,427.61-5,139.96-1,347.28

Finding the Fourth Proportional to 3,427.61, 5,139.96 and 1,347.28

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Solution

The fourth proportional to 3,427.61, 5,139.96 and 1,347.28 is: 2,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.61 : 5,139.96 = 1,347.28 : x
  2. Step 2: Convert to fraction form
    3,427.61/5,139.96 = 1,347.28/x
  3. Step 3: Cross multiply
    3,427.61x = 5,139.96 × 1,347.28
  4. Step 4: Simplify right side
    3,427.61x = 6,924,984.84
  5. Step 5: Solve for x
    x = 6,924,984.84/3,427.61
  6. Step 6: Final answer
    x = 2,020.35

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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.