Home / 5,151.40-7,727.06-1,864.48

Finding the Fourth Proportional to 5,151.40, 7,727.06 and 1,864.48

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Solution

The fourth proportional to 5,151.40, 7,727.06 and 1,864.48 is: 2,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.40 : 7,727.06 = 1,864.48 : x
  2. Step 2: Convert to fraction form
    5,151.40/7,727.06 = 1,864.48/x
  3. Step 3: Cross multiply
    5,151.40x = 7,727.06 × 1,864.48
  4. Step 4: Simplify right side
    5,151.40x = 14,406,948.83
  5. Step 5: Solve for x
    x = 14,406,948.83/5,151.40
  6. Step 6: Final answer
    x = 2,796.71

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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.