Home / 2,712.43-3,742.98-1,533.28

Finding the Fourth Proportional to 2,712.43, 3,742.98 and 1,533.28

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Solution

The fourth proportional to 2,712.43, 3,742.98 and 1,533.28 is: 2,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.43 : 3,742.98 = 1,533.28 : x
  2. Step 2: Convert to fraction form
    2,712.43/3,742.98 = 1,533.28/x
  3. Step 3: Cross multiply
    2,712.43x = 3,742.98 × 1,533.28
  4. Step 4: Simplify right side
    2,712.43x = 5,739,036.37
  5. Step 5: Solve for x
    x = 5,739,036.37/2,712.43
  6. Step 6: Final answer
    x = 2,115.83

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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.