Home / 7,110.57-9,812.88-3,966.75

Finding the Fourth Proportional to 7,110.57, 9,812.88 and 3,966.75

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Solution

The fourth proportional to 7,110.57, 9,812.88 and 3,966.75 is: 5,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.57 : 9,812.88 = 3,966.75 : x
  2. Step 2: Convert to fraction form
    7,110.57/9,812.88 = 3,966.75/x
  3. Step 3: Cross multiply
    7,110.57x = 9,812.88 × 3,966.75
  4. Step 4: Simplify right side
    7,110.57x = 38,925,241.74
  5. Step 5: Solve for x
    x = 38,925,241.74/7,110.57
  6. Step 6: Final answer
    x = 5,474.28

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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.