Home / 3,387.32-5,056.19-3,128.96

Finding the Fourth Proportional to 3,387.32, 5,056.19 and 3,128.96

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Solution

The fourth proportional to 3,387.32, 5,056.19 and 3,128.96 is: 4,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.32 : 5,056.19 = 3,128.96 : x
  2. Step 2: Convert to fraction form
    3,387.32/5,056.19 = 3,128.96/x
  3. Step 3: Cross multiply
    3,387.32x = 5,056.19 × 3,128.96
  4. Step 4: Simplify right side
    3,387.32x = 15,820,624.99
  5. Step 5: Solve for x
    x = 15,820,624.99/3,387.32
  6. Step 6: Final answer
    x = 4,670.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.