Home / 2,397.81-3,306.78-1,557.66

Finding the Fourth Proportional to 2,397.81, 3,306.78 and 1,557.66

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Solution

The fourth proportional to 2,397.81, 3,306.78 and 1,557.66 is: 2,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.81 : 3,306.78 = 1,557.66 : x
  2. Step 2: Convert to fraction form
    2,397.81/3,306.78 = 1,557.66/x
  3. Step 3: Cross multiply
    2,397.81x = 3,306.78 × 1,557.66
  4. Step 4: Simplify right side
    2,397.81x = 5,150,838.93
  5. Step 5: Solve for x
    x = 5,150,838.93/2,397.81
  6. Step 6: Final answer
    x = 2,148.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.