Home / 2,803.41-3,868.70-1,561.41

Finding the Fourth Proportional to 2,803.41, 3,868.70 and 1,561.41

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Solution

The fourth proportional to 2,803.41, 3,868.70 and 1,561.41 is: 2,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.41 : 3,868.70 = 1,561.41 : x
  2. Step 2: Convert to fraction form
    2,803.41/3,868.70 = 1,561.41/x
  3. Step 3: Cross multiply
    2,803.41x = 3,868.70 × 1,561.41
  4. Step 4: Simplify right side
    2,803.41x = 6,040,613.34
  5. Step 5: Solve for x
    x = 6,040,613.34/2,803.41
  6. Step 6: Final answer
    x = 2,154.74

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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.