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Finding the Fourth Proportional to 3,891.51, 5,860.08 and 2,803.41

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Solution

The fourth proportional to 3,891.51, 5,860.08 and 2,803.41 is: 4,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.51 : 5,860.08 = 2,803.41 : x
  2. Step 2: Convert to fraction form
    3,891.51/5,860.08 = 2,803.41/x
  3. Step 3: Cross multiply
    3,891.51x = 5,860.08 × 2,803.41
  4. Step 4: Simplify right side
    3,891.51x = 16,428,206.87
  5. Step 5: Solve for x
    x = 16,428,206.87/3,891.51
  6. Step 6: Final answer
    x = 4,221.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.