Home / 7,102.88-10,641.36-3,966.56

Finding the Fourth Proportional to 7,102.88, 10,641.36 and 3,966.56

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Solution

The fourth proportional to 7,102.88, 10,641.36 and 3,966.56 is: 5,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.88 : 10,641.36 = 3,966.56 : x
  2. Step 2: Convert to fraction form
    7,102.88/10,641.36 = 3,966.56/x
  3. Step 3: Cross multiply
    7,102.88x = 10,641.36 × 3,966.56
  4. Step 4: Simplify right side
    7,102.88x = 42,209,592.92
  5. Step 5: Solve for x
    x = 42,209,592.92/7,102.88
  6. Step 6: Final answer
    x = 5,942.60

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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.