Home / 2,742.06-4,114.12-1,647.21

Finding the Fourth Proportional to 2,742.06, 4,114.12 and 1,647.21

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Solution

The fourth proportional to 2,742.06, 4,114.12 and 1,647.21 is: 2,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.06 : 4,114.12 = 1,647.21 : x
  2. Step 2: Convert to fraction form
    2,742.06/4,114.12 = 1,647.21/x
  3. Step 3: Cross multiply
    2,742.06x = 4,114.12 × 1,647.21
  4. Step 4: Simplify right side
    2,742.06x = 6,776,819.61
  5. Step 5: Solve for x
    x = 6,776,819.61/2,742.06
  6. Step 6: Final answer
    x = 2,471.43

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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.