Home / 7,131.76-10,698.20-1,937.52

Finding the Fourth Proportional to 7,131.76, 10,698.20 and 1,937.52

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Solution

The fourth proportional to 7,131.76, 10,698.20 and 1,937.52 is: 2,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.76 : 10,698.20 = 1,937.52 : x
  2. Step 2: Convert to fraction form
    7,131.76/10,698.20 = 1,937.52/x
  3. Step 3: Cross multiply
    7,131.76x = 10,698.20 × 1,937.52
  4. Step 4: Simplify right side
    7,131.76x = 20,727,976.46
  5. Step 5: Solve for x
    x = 20,727,976.46/7,131.76
  6. Step 6: Final answer
    x = 2,906.43

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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.