Home / 3,708.72-5,562.48-1,111.20

Finding the Fourth Proportional to 3,708.72, 5,562.48 and 1,111.20

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Solution

The fourth proportional to 3,708.72, 5,562.48 and 1,111.20 is: 1,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.72 : 5,562.48 = 1,111.20 : x
  2. Step 2: Convert to fraction form
    3,708.72/5,562.48 = 1,111.20/x
  3. Step 3: Cross multiply
    3,708.72x = 5,562.48 × 1,111.20
  4. Step 4: Simplify right side
    3,708.72x = 6,181,027.78
  5. Step 5: Solve for x
    x = 6,181,027.78/3,708.72
  6. Step 6: Final answer
    x = 1,666.62

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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.