Home / 2,740.20-4,110.18-891.42

Finding the Fourth Proportional to 2,740.20, 4,110.18 and 891.42

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Solution

The fourth proportional to 2,740.20, 4,110.18 and 891.42 is: 1,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.20 : 4,110.18 = 891.42 : x
  2. Step 2: Convert to fraction form
    2,740.20/4,110.18 = 891.42/x
  3. Step 3: Cross multiply
    2,740.20x = 4,110.18 × 891.42
  4. Step 4: Simplify right side
    2,740.20x = 3,663,896.66
  5. Step 5: Solve for x
    x = 3,663,896.66/2,740.20
  6. Step 6: Final answer
    x = 1,337.09

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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.