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Finding the Fourth Proportional to 3,787.76, 5,225.11 and 2,606.78

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Solution

The fourth proportional to 3,787.76, 5,225.11 and 2,606.78 is: 3,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.76 : 5,225.11 = 2,606.78 : x
  2. Step 2: Convert to fraction form
    3,787.76/5,225.11 = 2,606.78/x
  3. Step 3: Cross multiply
    3,787.76x = 5,225.11 × 2,606.78
  4. Step 4: Simplify right side
    3,787.76x = 13,620,718.79
  5. Step 5: Solve for x
    x = 13,620,718.79/3,787.76
  6. Step 6: Final answer
    x = 3,595.98

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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.