Home / 5,470.50-7,549.70-3,113.40

Finding the Fourth Proportional to 5,470.50, 7,549.70 and 3,113.40

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Solution

The fourth proportional to 5,470.50, 7,549.70 and 3,113.40 is: 4,296.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.50 : 7,549.70 = 3,113.40 : x
  2. Step 2: Convert to fraction form
    5,470.50/7,549.70 = 3,113.40/x
  3. Step 3: Cross multiply
    5,470.50x = 7,549.70 × 3,113.40
  4. Step 4: Simplify right side
    5,470.50x = 23,505,235.98
  5. Step 5: Solve for x
    x = 23,505,235.98/5,470.50
  6. Step 6: Final answer
    x = 4,296.73

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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.