Home / 2,712.08-3,742.20-1,533.12

Finding the Fourth Proportional to 2,712.08, 3,742.20 and 1,533.12

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Solution

The fourth proportional to 2,712.08, 3,742.20 and 1,533.12 is: 2,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.08 : 3,742.20 = 1,533.12 : x
  2. Step 2: Convert to fraction form
    2,712.08/3,742.20 = 1,533.12/x
  3. Step 3: Cross multiply
    2,712.08x = 3,742.20 × 1,533.12
  4. Step 4: Simplify right side
    2,712.08x = 5,737,241.66
  5. Step 5: Solve for x
    x = 5,737,241.66/2,712.08
  6. Step 6: Final answer
    x = 2,115.44

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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.