Home / 3,379.12-5,070.42-2,557.12

Finding the Fourth Proportional to 3,379.12, 5,070.42 and 2,557.12

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Solution

The fourth proportional to 3,379.12, 5,070.42 and 2,557.12 is: 3,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.12 : 5,070.42 = 2,557.12 : x
  2. Step 2: Convert to fraction form
    3,379.12/5,070.42 = 2,557.12/x
  3. Step 3: Cross multiply
    3,379.12x = 5,070.42 × 2,557.12
  4. Step 4: Simplify right side
    3,379.12x = 12,965,672.39
  5. Step 5: Solve for x
    x = 12,965,672.39/3,379.12
  6. Step 6: Final answer
    x = 3,837.00

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1.5x scale

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.