Home / 3,557.40-5,336.10-2,002.20

Finding the Fourth Proportional to 3,557.40, 5,336.10 and 2,002.20

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Solution

The fourth proportional to 3,557.40, 5,336.10 and 2,002.20 is: 3,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.40 : 5,336.10 = 2,002.20 : x
  2. Step 2: Convert to fraction form
    3,557.40/5,336.10 = 2,002.20/x
  3. Step 3: Cross multiply
    3,557.40x = 5,336.10 × 2,002.20
  4. Step 4: Simplify right side
    3,557.40x = 10,683,939.42
  5. Step 5: Solve for x
    x = 10,683,939.42/3,557.40
  6. Step 6: Final answer
    x = 3,003.30

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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.