Home / 2,741.28-4,110.86-891.96

Finding the Fourth Proportional to 2,741.28, 4,110.86 and 891.96

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Solution

The fourth proportional to 2,741.28, 4,110.86 and 891.96 is: 1,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,741.28 : 4,110.86 = 891.96 : x
  2. Step 2: Convert to fraction form
    2,741.28/4,110.86 = 891.96/x
  3. Step 3: Cross multiply
    2,741.28x = 4,110.86 × 891.96
  4. Step 4: Simplify right side
    2,741.28x = 3,666,722.69
  5. Step 5: Solve for x
    x = 3,666,722.69/2,741.28
  6. Step 6: Final answer
    x = 1,337.60

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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.