Home / 7,648.75-11,462.45-3,943.20

Finding the Fourth Proportional to 7,648.75, 11,462.45 and 3,943.20

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Solution

The fourth proportional to 7,648.75, 11,462.45 and 3,943.20 is: 5,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.75 : 11,462.45 = 3,943.20 : x
  2. Step 2: Convert to fraction form
    7,648.75/11,462.45 = 3,943.20/x
  3. Step 3: Cross multiply
    7,648.75x = 11,462.45 × 3,943.20
  4. Step 4: Simplify right side
    7,648.75x = 45,198,756.11
  5. Step 5: Solve for x
    x = 45,198,756.11/7,648.75
  6. Step 6: Final answer
    x = 5,909.30

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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.