Home / 5,470.48-7,549.86-3,113.20

Finding the Fourth Proportional to 5,470.48, 7,549.86 and 3,113.20

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Solution

The fourth proportional to 5,470.48, 7,549.86 and 3,113.20 is: 4,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.48 : 7,549.86 = 3,113.20 : x
  2. Step 2: Convert to fraction form
    5,470.48/7,549.86 = 3,113.20/x
  3. Step 3: Cross multiply
    5,470.48x = 7,549.86 × 3,113.20
  4. Step 4: Simplify right side
    5,470.48x = 23,504,224.15
  5. Step 5: Solve for x
    x = 23,504,224.15/5,470.48
  6. Step 6: Final answer
    x = 4,296.56

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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.