Home / 3,148.66-4,345.27-1,732.40

Finding the Fourth Proportional to 3,148.66, 4,345.27 and 1,732.40

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Solution

The fourth proportional to 3,148.66, 4,345.27 and 1,732.40 is: 2,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.66 : 4,345.27 = 1,732.40 : x
  2. Step 2: Convert to fraction form
    3,148.66/4,345.27 = 1,732.40/x
  3. Step 3: Cross multiply
    3,148.66x = 4,345.27 × 1,732.40
  4. Step 4: Simplify right side
    3,148.66x = 7,527,745.75
  5. Step 5: Solve for x
    x = 7,527,745.75/3,148.66
  6. Step 6: Final answer
    x = 2,390.78

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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.