Home / 3,427.30-5,143.07-1,578.68

Finding the Fourth Proportional to 3,427.30, 5,143.07 and 1,578.68

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Solution

The fourth proportional to 3,427.30, 5,143.07 and 1,578.68 is: 2,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.30 : 5,143.07 = 1,578.68 : x
  2. Step 2: Convert to fraction form
    3,427.30/5,143.07 = 1,578.68/x
  3. Step 3: Cross multiply
    3,427.30x = 5,143.07 × 1,578.68
  4. Step 4: Simplify right side
    3,427.30x = 8,119,239.98
  5. Step 5: Solve for x
    x = 8,119,239.98/3,427.30
  6. Step 6: Final answer
    x = 2,368.99

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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.