Home / 5,422.34-8,130.90-3,446.88

Finding the Fourth Proportional to 5,422.34, 8,130.90 and 3,446.88

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Solution

The fourth proportional to 5,422.34, 8,130.90 and 3,446.88 is: 5,168.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.34 : 8,130.90 = 3,446.88 : x
  2. Step 2: Convert to fraction form
    5,422.34/8,130.90 = 3,446.88/x
  3. Step 3: Cross multiply
    5,422.34x = 8,130.90 × 3,446.88
  4. Step 4: Simplify right side
    5,422.34x = 28,026,236.59
  5. Step 5: Solve for x
    x = 28,026,236.59/5,422.34
  6. Step 6: Final answer
    x = 5,168.66

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1.5x scale

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.