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Finding the Fourth Proportional to 2,149.32, 2,964.12 and 1,352.76

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Solution

The fourth proportional to 2,149.32, 2,964.12 and 1,352.76 is: 1,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.32 : 2,964.12 = 1,352.76 : x
  2. Step 2: Convert to fraction form
    2,149.32/2,964.12 = 1,352.76/x
  3. Step 3: Cross multiply
    2,149.32x = 2,964.12 × 1,352.76
  4. Step 4: Simplify right side
    2,149.32x = 4,009,742.97
  5. Step 5: Solve for x
    x = 4,009,742.97/2,149.32
  6. Step 6: Final answer
    x = 1,865.59

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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.