Home / 3,349.11-4,627.23-2,787.78

Finding the Fourth Proportional to 3,349.11, 4,627.23 and 2,787.78

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Solution

The fourth proportional to 3,349.11, 4,627.23 and 2,787.78 is: 3,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.11 : 4,627.23 = 2,787.78 : x
  2. Step 2: Convert to fraction form
    3,349.11/4,627.23 = 2,787.78/x
  3. Step 3: Cross multiply
    3,349.11x = 4,627.23 × 2,787.78
  4. Step 4: Simplify right side
    3,349.11x = 12,899,699.25
  5. Step 5: Solve for x
    x = 12,899,699.25/3,349.11
  6. Step 6: Final answer
    x = 3,851.68

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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.