Home / 7,478.28-11,218.86-2,284.92

Finding the Fourth Proportional to 7,478.28, 11,218.86 and 2,284.92

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Solution

The fourth proportional to 7,478.28, 11,218.86 and 2,284.92 is: 3,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.28 : 11,218.86 = 2,284.92 : x
  2. Step 2: Convert to fraction form
    7,478.28/11,218.86 = 2,284.92/x
  3. Step 3: Cross multiply
    7,478.28x = 11,218.86 × 2,284.92
  4. Step 4: Simplify right side
    7,478.28x = 25,634,197.59
  5. Step 5: Solve for x
    x = 25,634,197.59/7,478.28
  6. Step 6: Final answer
    x = 3,427.82

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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.