Home / 7,172.20-10,752.81-3,470.68

Finding the Fourth Proportional to 7,172.20, 10,752.81 and 3,470.68

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Solution

The fourth proportional to 7,172.20, 10,752.81 and 3,470.68 is: 5,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.20 : 10,752.81 = 3,470.68 : x
  2. Step 2: Convert to fraction form
    7,172.20/10,752.81 = 3,470.68/x
  3. Step 3: Cross multiply
    7,172.20x = 10,752.81 × 3,470.68
  4. Step 4: Simplify right side
    7,172.20x = 37,319,562.61
  5. Step 5: Solve for x
    x = 37,319,562.61/7,172.20
  6. Step 6: Final answer
    x = 5,203.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.