Home / 7,081.13-9,771.95-3,937.25

Finding the Fourth Proportional to 7,081.13, 9,771.95 and 3,937.25

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Solution

The fourth proportional to 7,081.13, 9,771.95 and 3,937.25 is: 5,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.13 : 9,771.95 = 3,937.25 : x
  2. Step 2: Convert to fraction form
    7,081.13/9,771.95 = 3,937.25/x
  3. Step 3: Cross multiply
    7,081.13x = 9,771.95 × 3,937.25
  4. Step 4: Simplify right side
    7,081.13x = 38,474,571.12
  5. Step 5: Solve for x
    x = 38,474,571.12/7,081.13
  6. Step 6: Final answer
    x = 5,433.40

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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.