Home / 3,042.88-4,564.32-1,287.61

Finding the Fourth Proportional to 3,042.88, 4,564.32 and 1,287.61

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Solution

The fourth proportional to 3,042.88, 4,564.32 and 1,287.61 is: 1,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.88 : 4,564.32 = 1,287.61 : x
  2. Step 2: Convert to fraction form
    3,042.88/4,564.32 = 1,287.61/x
  3. Step 3: Cross multiply
    3,042.88x = 4,564.32 × 1,287.61
  4. Step 4: Simplify right side
    3,042.88x = 5,877,064.08
  5. Step 5: Solve for x
    x = 5,877,064.08/3,042.88
  6. Step 6: Final answer
    x = 1,931.42

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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.