Home / 2,731.28-3,770.34-1,894.76

Finding the Fourth Proportional to 2,731.28, 3,770.34 and 1,894.76

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Solution

The fourth proportional to 2,731.28, 3,770.34 and 1,894.76 is: 2,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.28 : 3,770.34 = 1,894.76 : x
  2. Step 2: Convert to fraction form
    2,731.28/3,770.34 = 1,894.76/x
  3. Step 3: Cross multiply
    2,731.28x = 3,770.34 × 1,894.76
  4. Step 4: Simplify right side
    2,731.28x = 7,143,889.42
  5. Step 5: Solve for x
    x = 7,143,889.42/2,731.28
  6. Step 6: Final answer
    x = 2,615.58

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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.