Home / 7,790.28-11,671.36-4,276.48

Finding the Fourth Proportional to 7,790.28, 11,671.36 and 4,276.48

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Solution

The fourth proportional to 7,790.28, 11,671.36 and 4,276.48 is: 6,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.28 : 11,671.36 = 4,276.48 : x
  2. Step 2: Convert to fraction form
    7,790.28/11,671.36 = 4,276.48/x
  3. Step 3: Cross multiply
    7,790.28x = 11,671.36 × 4,276.48
  4. Step 4: Simplify right side
    7,790.28x = 49,912,337.61
  5. Step 5: Solve for x
    x = 49,912,337.61/7,790.28
  6. Step 6: Final answer
    x = 6,407.00

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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.