Home / 5,426.88-7,489.20-3,069.12

Finding the Fourth Proportional to 5,426.88, 7,489.20 and 3,069.12

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Solution

The fourth proportional to 5,426.88, 7,489.20 and 3,069.12 is: 4,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.88 : 7,489.20 = 3,069.12 : x
  2. Step 2: Convert to fraction form
    5,426.88/7,489.20 = 3,069.12/x
  3. Step 3: Cross multiply
    5,426.88x = 7,489.20 × 3,069.12
  4. Step 4: Simplify right side
    5,426.88x = 22,985,253.50
  5. Step 5: Solve for x
    x = 22,985,253.50/5,426.88
  6. Step 6: Final answer
    x = 4,235.45

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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.