Home / 3,432.69-5,148.30-1,240.20

Finding the Fourth Proportional to 3,432.69, 5,148.30 and 1,240.20

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Solution

The fourth proportional to 3,432.69, 5,148.30 and 1,240.20 is: 1,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.69 : 5,148.30 = 1,240.20 : x
  2. Step 2: Convert to fraction form
    3,432.69/5,148.30 = 1,240.20/x
  3. Step 3: Cross multiply
    3,432.69x = 5,148.30 × 1,240.20
  4. Step 4: Simplify right side
    3,432.69x = 6,384,921.66
  5. Step 5: Solve for x
    x = 6,384,921.66/3,432.69
  6. Step 6: Final answer
    x = 1,860.03

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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.