Home / 3,439.53-5,160.31-1,686.49

Finding the Fourth Proportional to 3,439.53, 5,160.31 and 1,686.49

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Solution

The fourth proportional to 3,439.53, 5,160.31 and 1,686.49 is: 2,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.53 : 5,160.31 = 1,686.49 : x
  2. Step 2: Convert to fraction form
    3,439.53/5,160.31 = 1,686.49/x
  3. Step 3: Cross multiply
    3,439.53x = 5,160.31 × 1,686.49
  4. Step 4: Simplify right side
    3,439.53x = 8,702,794.09
  5. Step 5: Solve for x
    x = 8,702,794.09/3,439.53
  6. Step 6: Final answer
    x = 2,530.23

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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.