Home / 3,627.12-5,428.32-2,809.02

Finding the Fourth Proportional to 3,627.12, 5,428.32 and 2,809.02

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Solution

The fourth proportional to 3,627.12, 5,428.32 and 2,809.02 is: 4,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.12 : 5,428.32 = 2,809.02 : x
  2. Step 2: Convert to fraction form
    3,627.12/5,428.32 = 2,809.02/x
  3. Step 3: Cross multiply
    3,627.12x = 5,428.32 × 2,809.02
  4. Step 4: Simplify right side
    3,627.12x = 15,248,259.45
  5. Step 5: Solve for x
    x = 15,248,259.45/3,627.12
  6. Step 6: Final answer
    x = 4,203.96

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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.