Home / 3,443.05-5,165.12-1,688.19

Finding the Fourth Proportional to 3,443.05, 5,165.12 and 1,688.19

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Solution

The fourth proportional to 3,443.05, 5,165.12 and 1,688.19 is: 2,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,443.05 : 5,165.12 = 1,688.19 : x
  2. Step 2: Convert to fraction form
    3,443.05/5,165.12 = 1,688.19/x
  3. Step 3: Cross multiply
    3,443.05x = 5,165.12 × 1,688.19
  4. Step 4: Simplify right side
    3,443.05x = 8,719,703.93
  5. Step 5: Solve for x
    x = 8,719,703.93/3,443.05
  6. Step 6: Final answer
    x = 2,532.55

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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.