Home / 5,739.60-7,920.36-3,381.30

Finding the Fourth Proportional to 5,739.60, 7,920.36 and 3,381.30

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Solution

The fourth proportional to 5,739.60, 7,920.36 and 3,381.30 is: 4,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.60 : 7,920.36 = 3,381.30 : x
  2. Step 2: Convert to fraction form
    5,739.60/7,920.36 = 3,381.30/x
  3. Step 3: Cross multiply
    5,739.60x = 7,920.36 × 3,381.30
  4. Step 4: Simplify right side
    5,739.60x = 26,781,113.27
  5. Step 5: Solve for x
    x = 26,781,113.27/5,739.60
  6. Step 6: Final answer
    x = 4,666.02

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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.