Home / 3,749.12-5,620.24-1,440.16

Finding the Fourth Proportional to 3,749.12, 5,620.24 and 1,440.16

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Solution

The fourth proportional to 3,749.12, 5,620.24 and 1,440.16 is: 2,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.12 : 5,620.24 = 1,440.16 : x
  2. Step 2: Convert to fraction form
    3,749.12/5,620.24 = 1,440.16/x
  3. Step 3: Cross multiply
    3,749.12x = 5,620.24 × 1,440.16
  4. Step 4: Simplify right side
    3,749.12x = 8,094,044.84
  5. Step 5: Solve for x
    x = 8,094,044.84/3,749.12
  6. Step 6: Final answer
    x = 2,158.92

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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.