Home / 5,470.47-7,548.80-3,112.29

Finding the Fourth Proportional to 5,470.47, 7,548.80 and 3,112.29

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Solution

The fourth proportional to 5,470.47, 7,548.80 and 3,112.29 is: 4,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.47 : 7,548.80 = 3,112.29 : x
  2. Step 2: Convert to fraction form
    5,470.47/7,548.80 = 3,112.29/x
  3. Step 3: Cross multiply
    5,470.47x = 7,548.80 × 3,112.29
  4. Step 4: Simplify right side
    5,470.47x = 23,494,039.19
  5. Step 5: Solve for x
    x = 23,494,039.19/5,470.47
  6. Step 6: Final answer
    x = 4,294.70

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1.5x scale

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.