Home / 2,712.08-3,742.80-1,533.52

Finding the Fourth Proportional to 2,712.08, 3,742.80 and 1,533.52

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Solution

The fourth proportional to 2,712.08, 3,742.80 and 1,533.52 is: 2,116.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.08 : 3,742.80 = 1,533.52 : x
  2. Step 2: Convert to fraction form
    2,712.08/3,742.80 = 1,533.52/x
  3. Step 3: Cross multiply
    2,712.08x = 3,742.80 × 1,533.52
  4. Step 4: Simplify right side
    2,712.08x = 5,739,658.66
  5. Step 5: Solve for x
    x = 5,739,658.66/2,712.08
  6. Step 6: Final answer
    x = 2,116.33

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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.