Home / 2,156.18-3,234.30-617.18

Finding the Fourth Proportional to 2,156.18, 3,234.30 and 617.18

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Solution

The fourth proportional to 2,156.18, 3,234.30 and 617.18 is: 925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.18 : 3,234.30 = 617.18 : x
  2. Step 2: Convert to fraction form
    2,156.18/3,234.30 = 617.18/x
  3. Step 3: Cross multiply
    2,156.18x = 3,234.30 × 617.18
  4. Step 4: Simplify right side
    2,156.18x = 1,996,145.27
  5. Step 5: Solve for x
    x = 1,996,145.27/2,156.18
  6. Step 6: Final answer
    x = 925.78

Related Problems

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Double scale
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Similar ratio
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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.