Home / 3,951.12-5,412.96-3,803.40

Finding the Fourth Proportional to 3,951.12, 5,412.96 and 3,803.40

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Solution

The fourth proportional to 3,951.12, 5,412.96 and 3,803.40 is: 5,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.12 : 5,412.96 = 3,803.40 : x
  2. Step 2: Convert to fraction form
    3,951.12/5,412.96 = 3,803.40/x
  3. Step 3: Cross multiply
    3,951.12x = 5,412.96 × 3,803.40
  4. Step 4: Simplify right side
    3,951.12x = 20,587,652.06
  5. Step 5: Solve for x
    x = 20,587,652.06/3,951.12
  6. Step 6: Final answer
    x = 5,210.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.