Home / 7,081.19-9,772.49-3,937.31

Finding the Fourth Proportional to 7,081.19, 9,772.49 and 3,937.31

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Solution

The fourth proportional to 7,081.19, 9,772.49 and 3,937.31 is: 5,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.19 : 9,772.49 = 3,937.31 : x
  2. Step 2: Convert to fraction form
    7,081.19/9,772.49 = 3,937.31/x
  3. Step 3: Cross multiply
    7,081.19x = 9,772.49 × 3,937.31
  4. Step 4: Simplify right side
    7,081.19x = 38,477,302.92
  5. Step 5: Solve for x
    x = 38,477,302.92/7,081.19
  6. Step 6: Final answer
    x = 5,433.73

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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.