Home / 2,169.66-3,248.09-1,345.28

Finding the Fourth Proportional to 2,169.66, 3,248.09 and 1,345.28

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Solution

The fourth proportional to 2,169.66, 3,248.09 and 1,345.28 is: 2,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.66 : 3,248.09 = 1,345.28 : x
  2. Step 2: Convert to fraction form
    2,169.66/3,248.09 = 1,345.28/x
  3. Step 3: Cross multiply
    2,169.66x = 3,248.09 × 1,345.28
  4. Step 4: Simplify right side
    2,169.66x = 4,369,590.52
  5. Step 5: Solve for x
    x = 4,369,590.52/2,169.66
  6. Step 6: Final answer
    x = 2,013.95

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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.