Home / 3,449.79-5,175.23-1,140.75

Finding the Fourth Proportional to 3,449.79, 5,175.23 and 1,140.75

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Solution

The fourth proportional to 3,449.79, 5,175.23 and 1,140.75 is: 1,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.79 : 5,175.23 = 1,140.75 : x
  2. Step 2: Convert to fraction form
    3,449.79/5,175.23 = 1,140.75/x
  3. Step 3: Cross multiply
    3,449.79x = 5,175.23 × 1,140.75
  4. Step 4: Simplify right side
    3,449.79x = 5,903,637.92
  5. Step 5: Solve for x
    x = 5,903,637.92/3,449.79
  6. Step 6: Final answer
    x = 1,711.30

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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.