Home / 3,432.20-4,736.28-1,919.84

Finding the Fourth Proportional to 3,432.20, 4,736.28 and 1,919.84

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Solution

The fourth proportional to 3,432.20, 4,736.28 and 1,919.84 is: 2,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.20 : 4,736.28 = 1,919.84 : x
  2. Step 2: Convert to fraction form
    3,432.20/4,736.28 = 1,919.84/x
  3. Step 3: Cross multiply
    3,432.20x = 4,736.28 × 1,919.84
  4. Step 4: Simplify right side
    3,432.20x = 9,092,899.80
  5. Step 5: Solve for x
    x = 9,092,899.80/3,432.20
  6. Step 6: Final answer
    x = 2,649.29

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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.