Home / 4,245.28-6,359.28-1,929.76

Finding the Fourth Proportional to 4,245.28, 6,359.28 and 1,929.76

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Solution

The fourth proportional to 4,245.28, 6,359.28 and 1,929.76 is: 2,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.28 : 6,359.28 = 1,929.76 : x
  2. Step 2: Convert to fraction form
    4,245.28/6,359.28 = 1,929.76/x
  3. Step 3: Cross multiply
    4,245.28x = 6,359.28 × 1,929.76
  4. Step 4: Simplify right side
    4,245.28x = 12,271,884.17
  5. Step 5: Solve for x
    x = 12,271,884.17/4,245.28
  6. Step 6: Final answer
    x = 2,890.71

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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.