Home / 6,749.28-10,127.70-2,856.60

Finding the Fourth Proportional to 6,749.28, 10,127.70 and 2,856.60

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Solution

The fourth proportional to 6,749.28, 10,127.70 and 2,856.60 is: 4,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.28 : 10,127.70 = 2,856.60 : x
  2. Step 2: Convert to fraction form
    6,749.28/10,127.70 = 2,856.60/x
  3. Step 3: Cross multiply
    6,749.28x = 10,127.70 × 2,856.60
  4. Step 4: Simplify right side
    6,749.28x = 28,930,787.82
  5. Step 5: Solve for x
    x = 28,930,787.82/6,749.28
  6. Step 6: Final answer
    x = 4,286.50

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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.