Home / 3,561.88-4,913.58-2,972.20

Finding the Fourth Proportional to 3,561.88, 4,913.58 and 2,972.20

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Solution

The fourth proportional to 3,561.88, 4,913.58 and 2,972.20 is: 4,100.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.88 : 4,913.58 = 2,972.20 : x
  2. Step 2: Convert to fraction form
    3,561.88/4,913.58 = 2,972.20/x
  3. Step 3: Cross multiply
    3,561.88x = 4,913.58 × 2,972.20
  4. Step 4: Simplify right side
    3,561.88x = 14,604,142.48
  5. Step 5: Solve for x
    x = 14,604,142.48/3,561.88
  6. Step 6: Final answer
    x = 4,100.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.