Home / 3,214.16-4,432.44-2,742.32

Finding the Fourth Proportional to 3,214.16, 4,432.44 and 2,742.32

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Solution

The fourth proportional to 3,214.16, 4,432.44 and 2,742.32 is: 3,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.16 : 4,432.44 = 2,742.32 : x
  2. Step 2: Convert to fraction form
    3,214.16/4,432.44 = 2,742.32/x
  3. Step 3: Cross multiply
    3,214.16x = 4,432.44 × 2,742.32
  4. Step 4: Simplify right side
    3,214.16x = 12,155,168.86
  5. Step 5: Solve for x
    x = 12,155,168.86/3,214.16
  6. Step 6: Final answer
    x = 3,781.76

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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.