Home / 3,439.79-5,159.38-1,684.11

Finding the Fourth Proportional to 3,439.79, 5,159.38 and 1,684.11

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Solution

The fourth proportional to 3,439.79, 5,159.38 and 1,684.11 is: 2,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.79 : 5,159.38 = 1,684.11 : x
  2. Step 2: Convert to fraction form
    3,439.79/5,159.38 = 1,684.11/x
  3. Step 3: Cross multiply
    3,439.79x = 5,159.38 × 1,684.11
  4. Step 4: Simplify right side
    3,439.79x = 8,688,963.45
  5. Step 5: Solve for x
    x = 8,688,963.45/3,439.79
  6. Step 6: Final answer
    x = 2,526.02

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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.