Home / 5,470.56-7,549.40-3,112.64

Finding the Fourth Proportional to 5,470.56, 7,549.40 and 3,112.64

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Solution

The fourth proportional to 5,470.56, 7,549.40 and 3,112.64 is: 4,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.56 : 7,549.40 = 3,112.64 : x
  2. Step 2: Convert to fraction form
    5,470.56/7,549.40 = 3,112.64/x
  3. Step 3: Cross multiply
    5,470.56x = 7,549.40 × 3,112.64
  4. Step 4: Simplify right side
    5,470.56x = 23,498,564.42
  5. Step 5: Solve for x
    x = 23,498,564.42/5,470.56
  6. Step 6: Final answer
    x = 4,295.46

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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.