Home / 3,671.25-5,065.61-2,178.63

Finding the Fourth Proportional to 3,671.25, 5,065.61 and 2,178.63

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Solution

The fourth proportional to 3,671.25, 5,065.61 and 2,178.63 is: 3,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.25 : 5,065.61 = 2,178.63 : x
  2. Step 2: Convert to fraction form
    3,671.25/5,065.61 = 2,178.63/x
  3. Step 3: Cross multiply
    3,671.25x = 5,065.61 × 2,178.63
  4. Step 4: Simplify right side
    3,671.25x = 11,036,079.02
  5. Step 5: Solve for x
    x = 11,036,079.02/3,671.25
  6. Step 6: Final answer
    x = 3,006.08

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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.