Home / 2,387.35-3,290.65-1,862.47

Finding the Fourth Proportional to 2,387.35, 3,290.65 and 1,862.47

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Solution

The fourth proportional to 2,387.35, 3,290.65 and 1,862.47 is: 2,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.35 : 3,290.65 = 1,862.47 : x
  2. Step 2: Convert to fraction form
    2,387.35/3,290.65 = 1,862.47/x
  3. Step 3: Cross multiply
    2,387.35x = 3,290.65 × 1,862.47
  4. Step 4: Simplify right side
    2,387.35x = 6,128,736.91
  5. Step 5: Solve for x
    x = 6,128,736.91/2,387.35
  6. Step 6: Final answer
    x = 2,567.17

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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.