Home / 3,877.20-5,349.72-2,461.32

Finding the Fourth Proportional to 3,877.20, 5,349.72 and 2,461.32

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Solution

The fourth proportional to 3,877.20, 5,349.72 and 2,461.32 is: 3,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.20 : 5,349.72 = 2,461.32 : x
  2. Step 2: Convert to fraction form
    3,877.20/5,349.72 = 2,461.32/x
  3. Step 3: Cross multiply
    3,877.20x = 5,349.72 × 2,461.32
  4. Step 4: Simplify right side
    3,877.20x = 13,167,372.83
  5. Step 5: Solve for x
    x = 13,167,372.83/3,877.20
  6. Step 6: Final answer
    x = 3,396.10

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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.