Home / 3,431.24-5,142.98-1,578.53

Finding the Fourth Proportional to 3,431.24, 5,142.98 and 1,578.53

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Solution

The fourth proportional to 3,431.24, 5,142.98 and 1,578.53 is: 2,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.24 : 5,142.98 = 1,578.53 : x
  2. Step 2: Convert to fraction form
    3,431.24/5,142.98 = 1,578.53/x
  3. Step 3: Cross multiply
    3,431.24x = 5,142.98 × 1,578.53
  4. Step 4: Simplify right side
    3,431.24x = 8,118,340.33
  5. Step 5: Solve for x
    x = 8,118,340.33/3,431.24
  6. Step 6: Final answer
    x = 2,366.01

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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.