Home / 3,254.69-4,877.10-2,155.11

Finding the Fourth Proportional to 3,254.69, 4,877.10 and 2,155.11

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Solution

The fourth proportional to 3,254.69, 4,877.10 and 2,155.11 is: 3,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.69 : 4,877.10 = 2,155.11 : x
  2. Step 2: Convert to fraction form
    3,254.69/4,877.10 = 2,155.11/x
  3. Step 3: Cross multiply
    3,254.69x = 4,877.10 × 2,155.11
  4. Step 4: Simplify right side
    3,254.69x = 10,510,686.98
  5. Step 5: Solve for x
    x = 10,510,686.98/3,254.69
  6. Step 6: Final answer
    x = 3,229.40

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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.