Home / 7,309.11-10,955.80-3,151.07

Finding the Fourth Proportional to 7,309.11, 10,955.80 and 3,151.07

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Solution

The fourth proportional to 7,309.11, 10,955.80 and 3,151.07 is: 4,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,309.11 : 10,955.80 = 3,151.07 : x
  2. Step 2: Convert to fraction form
    7,309.11/10,955.80 = 3,151.07/x
  3. Step 3: Cross multiply
    7,309.11x = 10,955.80 × 3,151.07
  4. Step 4: Simplify right side
    7,309.11x = 34,522,476.95
  5. Step 5: Solve for x
    x = 34,522,476.95/7,309.11
  6. Step 6: Final answer
    x = 4,723.22

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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.