Home / 3,439.06-5,153.18-2,660.99

Finding the Fourth Proportional to 3,439.06, 5,153.18 and 2,660.99

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Solution

The fourth proportional to 3,439.06, 5,153.18 and 2,660.99 is: 3,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.06 : 5,153.18 = 2,660.99 : x
  2. Step 2: Convert to fraction form
    3,439.06/5,153.18 = 2,660.99/x
  3. Step 3: Cross multiply
    3,439.06x = 5,153.18 × 2,660.99
  4. Step 4: Simplify right side
    3,439.06x = 13,712,560.45
  5. Step 5: Solve for x
    x = 13,712,560.45/3,439.06
  6. Step 6: Final answer
    x = 3,987.30

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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.