Home / 5,470.79-7,550.15-3,112.88

Finding the Fourth Proportional to 5,470.79, 7,550.15 and 3,112.88

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Solution

The fourth proportional to 5,470.79, 7,550.15 and 3,112.88 is: 4,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.79 : 7,550.15 = 3,112.88 : x
  2. Step 2: Convert to fraction form
    5,470.79/7,550.15 = 3,112.88/x
  3. Step 3: Cross multiply
    5,470.79x = 7,550.15 × 3,112.88
  4. Step 4: Simplify right side
    5,470.79x = 23,502,657.62
  5. Step 5: Solve for x
    x = 23,502,657.62/5,470.79
  6. Step 6: Final answer
    x = 4,296.03

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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.