Home / 3,557.15-5,335.73-2,172.05

Finding the Fourth Proportional to 3,557.15, 5,335.73 and 2,172.05

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Solution

The fourth proportional to 3,557.15, 5,335.73 and 2,172.05 is: 3,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.15 : 5,335.73 = 2,172.05 : x
  2. Step 2: Convert to fraction form
    3,557.15/5,335.73 = 2,172.05/x
  3. Step 3: Cross multiply
    3,557.15x = 5,335.73 × 2,172.05
  4. Step 4: Simplify right side
    3,557.15x = 11,589,461.49
  5. Step 5: Solve for x
    x = 11,589,461.49/3,557.15
  6. Step 6: Final answer
    x = 3,258.08

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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.