Home / 3,742.12-5,612.11-1,276.38

Finding the Fourth Proportional to 3,742.12, 5,612.11 and 1,276.38

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Solution

The fourth proportional to 3,742.12, 5,612.11 and 1,276.38 is: 1,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.12 : 5,612.11 = 1,276.38 : x
  2. Step 2: Convert to fraction form
    3,742.12/5,612.11 = 1,276.38/x
  3. Step 3: Cross multiply
    3,742.12x = 5,612.11 × 1,276.38
  4. Step 4: Simplify right side
    3,742.12x = 7,163,184.96
  5. Step 5: Solve for x
    x = 7,163,184.96/3,742.12
  6. Step 6: Final answer
    x = 1,914.21

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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.