Home / 3,145.24-4,340.54-1,748.12

Finding the Fourth Proportional to 3,145.24, 4,340.54 and 1,748.12

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Solution

The fourth proportional to 3,145.24, 4,340.54 and 1,748.12 is: 2,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.24 : 4,340.54 = 1,748.12 : x
  2. Step 2: Convert to fraction form
    3,145.24/4,340.54 = 1,748.12/x
  3. Step 3: Cross multiply
    3,145.24x = 4,340.54 × 1,748.12
  4. Step 4: Simplify right side
    3,145.24x = 7,587,784.78
  5. Step 5: Solve for x
    x = 7,587,784.78/3,145.24
  6. Step 6: Final answer
    x = 2,412.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.