Home / 3,177.56-4,787.84-2,641.70

Finding the Fourth Proportional to 3,177.56, 4,787.84 and 2,641.70

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Solution

The fourth proportional to 3,177.56, 4,787.84 and 2,641.70 is: 3,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.56 : 4,787.84 = 2,641.70 : x
  2. Step 2: Convert to fraction form
    3,177.56/4,787.84 = 2,641.70/x
  3. Step 3: Cross multiply
    3,177.56x = 4,787.84 × 2,641.70
  4. Step 4: Simplify right side
    3,177.56x = 12,648,036.93
  5. Step 5: Solve for x
    x = 12,648,036.93/3,177.56
  6. Step 6: Final answer
    x = 3,980.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.