Home / 3,635.91-5,454.37-1,787.10

Finding the Fourth Proportional to 3,635.91, 5,454.37 and 1,787.10

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Solution

The fourth proportional to 3,635.91, 5,454.37 and 1,787.10 is: 2,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.91 : 5,454.37 = 1,787.10 : x
  2. Step 2: Convert to fraction form
    3,635.91/5,454.37 = 1,787.10/x
  3. Step 3: Cross multiply
    3,635.91x = 5,454.37 × 1,787.10
  4. Step 4: Simplify right side
    3,635.91x = 9,747,486.41
  5. Step 5: Solve for x
    x = 9,747,486.41/3,635.91
  6. Step 6: Final answer
    x = 2,680.89

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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.