Home / 2,740.08-3,778.20-2,208.72

Finding the Fourth Proportional to 2,740.08, 3,778.20 and 2,208.72

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Solution

The fourth proportional to 2,740.08, 3,778.20 and 2,208.72 is: 3,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.08 : 3,778.20 = 2,208.72 : x
  2. Step 2: Convert to fraction form
    2,740.08/3,778.20 = 2,208.72/x
  3. Step 3: Cross multiply
    2,740.08x = 3,778.20 × 2,208.72
  4. Step 4: Simplify right side
    2,740.08x = 8,344,985.90
  5. Step 5: Solve for x
    x = 8,344,985.90/2,740.08
  6. Step 6: Final answer
    x = 3,045.53

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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.