Home / 7,411.75-11,116.85-3,900.35

Finding the Fourth Proportional to 7,411.75, 11,116.85 and 3,900.35

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Solution

The fourth proportional to 7,411.75, 11,116.85 and 3,900.35 is: 5,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.75 : 11,116.85 = 3,900.35 : x
  2. Step 2: Convert to fraction form
    7,411.75/11,116.85 = 3,900.35/x
  3. Step 3: Cross multiply
    7,411.75x = 11,116.85 × 3,900.35
  4. Step 4: Simplify right side
    7,411.75x = 43,359,614.19
  5. Step 5: Solve for x
    x = 43,359,614.19/7,411.75
  6. Step 6: Final answer
    x = 5,850.12

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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.