Home / 3,417.24-5,129.50-2,728.20

Finding the Fourth Proportional to 3,417.24, 5,129.50 and 2,728.20

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Solution

The fourth proportional to 3,417.24, 5,129.50 and 2,728.20 is: 4,095.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.24 : 5,129.50 = 2,728.20 : x
  2. Step 2: Convert to fraction form
    3,417.24/5,129.50 = 2,728.20/x
  3. Step 3: Cross multiply
    3,417.24x = 5,129.50 × 2,728.20
  4. Step 4: Simplify right side
    3,417.24x = 13,994,301.90
  5. Step 5: Solve for x
    x = 13,994,301.90/3,417.24
  6. Step 6: Final answer
    x = 4,095.21

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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.