Home / 3,135.91-4,317.69-2,387.47

Finding the Fourth Proportional to 3,135.91, 4,317.69 and 2,387.47

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Solution

The fourth proportional to 3,135.91, 4,317.69 and 2,387.47 is: 3,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.91 : 4,317.69 = 2,387.47 : x
  2. Step 2: Convert to fraction form
    3,135.91/4,317.69 = 2,387.47/x
  3. Step 3: Cross multiply
    3,135.91x = 4,317.69 × 2,387.47
  4. Step 4: Simplify right side
    3,135.91x = 10,308,355.34
  5. Step 5: Solve for x
    x = 10,308,355.34/3,135.91
  6. Step 6: Final answer
    x = 3,287.20

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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.