Home / 3,426.88-5,141.60-1,578.88

Finding the Fourth Proportional to 3,426.88, 5,141.60 and 1,578.88

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Solution

The fourth proportional to 3,426.88, 5,141.60 and 1,578.88 is: 2,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.88 : 5,141.60 = 1,578.88 : x
  2. Step 2: Convert to fraction form
    3,426.88/5,141.60 = 1,578.88/x
  3. Step 3: Cross multiply
    3,426.88x = 5,141.60 × 1,578.88
  4. Step 4: Simplify right side
    3,426.88x = 8,117,969.41
  5. Step 5: Solve for x
    x = 8,117,969.41/3,426.88
  6. Step 6: Final answer
    x = 2,368.91

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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.