Home / 5,739.23-7,920.18-3,748.61

Finding the Fourth Proportional to 5,739.23, 7,920.18 and 3,748.61

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Solution

The fourth proportional to 5,739.23, 7,920.18 and 3,748.61 is: 5,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.23 : 7,920.18 = 3,748.61 : x
  2. Step 2: Convert to fraction form
    5,739.23/7,920.18 = 3,748.61/x
  3. Step 3: Cross multiply
    5,739.23x = 7,920.18 × 3,748.61
  4. Step 4: Simplify right side
    5,739.23x = 29,689,665.95
  5. Step 5: Solve for x
    x = 29,689,665.95/5,739.23
  6. Step 6: Final answer
    x = 5,173.11

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1.5x scale

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.