Home / 2,749.28-4,120.24-1,774.88

Finding the Fourth Proportional to 2,749.28, 4,120.24 and 1,774.88

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Solution

The fourth proportional to 2,749.28, 4,120.24 and 1,774.88 is: 2,659.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.28 : 4,120.24 = 1,774.88 : x
  2. Step 2: Convert to fraction form
    2,749.28/4,120.24 = 1,774.88/x
  3. Step 3: Cross multiply
    2,749.28x = 4,120.24 × 1,774.88
  4. Step 4: Simplify right side
    2,749.28x = 7,312,931.57
  5. Step 5: Solve for x
    x = 7,312,931.57/2,749.28
  6. Step 6: Final answer
    x = 2,659.94

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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.