Home / 2,712.12-3,742.74-1,533.30

Finding the Fourth Proportional to 2,712.12, 3,742.74 and 1,533.30

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Solution

The fourth proportional to 2,712.12, 3,742.74 and 1,533.30 is: 2,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.12 : 3,742.74 = 1,533.30 : x
  2. Step 2: Convert to fraction form
    2,712.12/3,742.74 = 1,533.30/x
  3. Step 3: Cross multiply
    2,712.12x = 3,742.74 × 1,533.30
  4. Step 4: Simplify right side
    2,712.12x = 5,738,743.24
  5. Step 5: Solve for x
    x = 5,738,743.24/2,712.12
  6. Step 6: Final answer
    x = 2,115.96

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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.