Home / 4,885.28-7,329.12-1,422.56

Finding the Fourth Proportional to 4,885.28, 7,329.12 and 1,422.56

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Solution

The fourth proportional to 4,885.28, 7,329.12 and 1,422.56 is: 2,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.28 : 7,329.12 = 1,422.56 : x
  2. Step 2: Convert to fraction form
    4,885.28/7,329.12 = 1,422.56/x
  3. Step 3: Cross multiply
    4,885.28x = 7,329.12 × 1,422.56
  4. Step 4: Simplify right side
    4,885.28x = 10,426,112.95
  5. Step 5: Solve for x
    x = 10,426,112.95/4,885.28
  6. Step 6: Final answer
    x = 2,134.19

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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.