Home / 7,292.12-10,935.84-3,131

Finding the Fourth Proportional to 7,292.12, 10,935.84 and 3,131

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Solution

The fourth proportional to 7,292.12, 10,935.84 and 3,131 is: 4,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.12 : 10,935.84 = 3,131 : x
  2. Step 2: Convert to fraction form
    7,292.12/10,935.84 = 3,131/x
  3. Step 3: Cross multiply
    7,292.12x = 10,935.84 × 3,131
  4. Step 4: Simplify right side
    7,292.12x = 34,240,115.04
  5. Step 5: Solve for x
    x = 34,240,115.04/7,292.12
  6. Step 6: Final answer
    x = 4,695.50

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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.