Home / 1,561.19-2,340.77-1,096.38

Finding the Fourth Proportional to 1,561.19, 2,340.77 and 1,096.38

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Solution

The fourth proportional to 1,561.19, 2,340.77 and 1,096.38 is: 1,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.19 : 2,340.77 = 1,096.38 : x
  2. Step 2: Convert to fraction form
    1,561.19/2,340.77 = 1,096.38/x
  3. Step 3: Cross multiply
    1,561.19x = 2,340.77 × 1,096.38
  4. Step 4: Simplify right side
    1,561.19x = 2,566,367.93
  5. Step 5: Solve for x
    x = 2,566,367.93/1,561.19
  6. Step 6: Final answer
    x = 1,643.86

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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.