Home / 5,415.73-8,126.12-2,947.62

Finding the Fourth Proportional to 5,415.73, 8,126.12 and 2,947.62

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Solution

The fourth proportional to 5,415.73, 8,126.12 and 2,947.62 is: 4,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.73 : 8,126.12 = 2,947.62 : x
  2. Step 2: Convert to fraction form
    5,415.73/8,126.12 = 2,947.62/x
  3. Step 3: Cross multiply
    5,415.73x = 8,126.12 × 2,947.62
  4. Step 4: Simplify right side
    5,415.73x = 23,952,713.83
  5. Step 5: Solve for x
    x = 23,952,713.83/5,415.73
  6. Step 6: Final answer
    x = 4,422.80

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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.