Home / 2,740.10-4,110.80-891.22

Finding the Fourth Proportional to 2,740.10, 4,110.80 and 891.22

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Solution

The fourth proportional to 2,740.10, 4,110.80 and 891.22 is: 1,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.10 : 4,110.80 = 891.22 : x
  2. Step 2: Convert to fraction form
    2,740.10/4,110.80 = 891.22/x
  3. Step 3: Cross multiply
    2,740.10x = 4,110.80 × 891.22
  4. Step 4: Simplify right side
    2,740.10x = 3,663,619.13
  5. Step 5: Solve for x
    x = 3,663,619.13/2,740.10
  6. Step 6: Final answer
    x = 1,337.04

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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.