Home / 3,438.68-5,155.72-1,588.78

Finding the Fourth Proportional to 3,438.68, 5,155.72 and 1,588.78

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Solution

The fourth proportional to 3,438.68, 5,155.72 and 1,588.78 is: 2,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.68 : 5,155.72 = 1,588.78 : x
  2. Step 2: Convert to fraction form
    3,438.68/5,155.72 = 1,588.78/x
  3. Step 3: Cross multiply
    3,438.68x = 5,155.72 × 1,588.78
  4. Step 4: Simplify right side
    3,438.68x = 8,191,304.82
  5. Step 5: Solve for x
    x = 8,191,304.82/3,438.68
  6. Step 6: Final answer
    x = 2,382.11

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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.