Home / 5,151.61-7,724.01-1,864.28

Finding the Fourth Proportional to 5,151.61, 7,724.01 and 1,864.28

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Solution

The fourth proportional to 5,151.61, 7,724.01 and 1,864.28 is: 2,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.61 : 7,724.01 = 1,864.28 : x
  2. Step 2: Convert to fraction form
    5,151.61/7,724.01 = 1,864.28/x
  3. Step 3: Cross multiply
    5,151.61x = 7,724.01 × 1,864.28
  4. Step 4: Simplify right side
    5,151.61x = 14,399,688.73
  5. Step 5: Solve for x
    x = 14,399,688.73/5,151.61
  6. Step 6: Final answer
    x = 2,795.18

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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.