Home / 2,382.86-3,287.64-1,543.58

Finding the Fourth Proportional to 2,382.86, 3,287.64 and 1,543.58

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Solution

The fourth proportional to 2,382.86, 3,287.64 and 1,543.58 is: 2,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.86 : 3,287.64 = 1,543.58 : x
  2. Step 2: Convert to fraction form
    2,382.86/3,287.64 = 1,543.58/x
  3. Step 3: Cross multiply
    2,382.86x = 3,287.64 × 1,543.58
  4. Step 4: Simplify right side
    2,382.86x = 5,074,735.35
  5. Step 5: Solve for x
    x = 5,074,735.35/2,382.86
  6. Step 6: Final answer
    x = 2,129.68

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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.