Home / 7,110.40-9,811.20-3,966.52

Finding the Fourth Proportional to 7,110.40, 9,811.20 and 3,966.52

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Solution

The fourth proportional to 7,110.40, 9,811.20 and 3,966.52 is: 5,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.40 : 9,811.20 = 3,966.52 : x
  2. Step 2: Convert to fraction form
    7,110.40/9,811.20 = 3,966.52/x
  3. Step 3: Cross multiply
    7,110.40x = 9,811.20 × 3,966.52
  4. Step 4: Simplify right side
    7,110.40x = 38,916,321.02
  5. Step 5: Solve for x
    x = 38,916,321.02/7,110.40
  6. Step 6: Final answer
    x = 5,473.15

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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.