Home / 4,947.06-6,830.29-3,155.55

Finding the Fourth Proportional to 4,947.06, 6,830.29 and 3,155.55

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Solution

The fourth proportional to 4,947.06, 6,830.29 and 3,155.55 is: 4,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.06 : 6,830.29 = 3,155.55 : x
  2. Step 2: Convert to fraction form
    4,947.06/6,830.29 = 3,155.55/x
  3. Step 3: Cross multiply
    4,947.06x = 6,830.29 × 3,155.55
  4. Step 4: Simplify right side
    4,947.06x = 21,553,321.61
  5. Step 5: Solve for x
    x = 21,553,321.61/4,947.06
  6. Step 6: Final answer
    x = 4,356.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.