Home / 3,307.77-4,561.11-2,128.41

Finding the Fourth Proportional to 3,307.77, 4,561.11 and 2,128.41

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Solution

The fourth proportional to 3,307.77, 4,561.11 and 2,128.41 is: 2,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.77 : 4,561.11 = 2,128.41 : x
  2. Step 2: Convert to fraction form
    3,307.77/4,561.11 = 2,128.41/x
  3. Step 3: Cross multiply
    3,307.77x = 4,561.11 × 2,128.41
  4. Step 4: Simplify right side
    3,307.77x = 9,707,912.14
  5. Step 5: Solve for x
    x = 9,707,912.14/3,307.77
  6. Step 6: Final answer
    x = 2,934.88

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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.