Home / 3,895.20-5,376.90-2,637

Finding the Fourth Proportional to 3,895.20, 5,376.90 and 2,637

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Solution

The fourth proportional to 3,895.20, 5,376.90 and 2,637 is: 3,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.20 : 5,376.90 = 2,637 : x
  2. Step 2: Convert to fraction form
    3,895.20/5,376.90 = 2,637/x
  3. Step 3: Cross multiply
    3,895.20x = 5,376.90 × 2,637
  4. Step 4: Simplify right side
    3,895.20x = 14,178,885.30
  5. Step 5: Solve for x
    x = 14,178,885.30/3,895.20
  6. Step 6: Final answer
    x = 3,640.09

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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.