Home / 7,382.75-10,188.20-4,239.95

Finding the Fourth Proportional to 7,382.75, 10,188.20 and 4,239.95

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Solution

The fourth proportional to 7,382.75, 10,188.20 and 4,239.95 is: 5,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.75 : 10,188.20 = 4,239.95 : x
  2. Step 2: Convert to fraction form
    7,382.75/10,188.20 = 4,239.95/x
  3. Step 3: Cross multiply
    7,382.75x = 10,188.20 × 4,239.95
  4. Step 4: Simplify right side
    7,382.75x = 43,197,458.59
  5. Step 5: Solve for x
    x = 43,197,458.59/7,382.75
  6. Step 6: Final answer
    x = 5,851.13

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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.