Home / 3,411.24-5,115.76-1,102.20

Finding the Fourth Proportional to 3,411.24, 5,115.76 and 1,102.20

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Solution

The fourth proportional to 3,411.24, 5,115.76 and 1,102.20 is: 1,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.24 : 5,115.76 = 1,102.20 : x
  2. Step 2: Convert to fraction form
    3,411.24/5,115.76 = 1,102.20/x
  3. Step 3: Cross multiply
    3,411.24x = 5,115.76 × 1,102.20
  4. Step 4: Simplify right side
    3,411.24x = 5,638,590.67
  5. Step 5: Solve for x
    x = 5,638,590.67/3,411.24
  6. Step 6: Final answer
    x = 1,652.94

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1.5x scale

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.