Home / 4,921.04-7,381.56-1,998.66

Finding the Fourth Proportional to 4,921.04, 7,381.56 and 1,998.66

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Solution

The fourth proportional to 4,921.04, 7,381.56 and 1,998.66 is: 2,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.04 : 7,381.56 = 1,998.66 : x
  2. Step 2: Convert to fraction form
    4,921.04/7,381.56 = 1,998.66/x
  3. Step 3: Cross multiply
    4,921.04x = 7,381.56 × 1,998.66
  4. Step 4: Simplify right side
    4,921.04x = 14,753,228.71
  5. Step 5: Solve for x
    x = 14,753,228.71/4,921.04
  6. Step 6: Final answer
    x = 2,997.99

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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.