Home / 2,110.23-2,908.65-1,689.84

Finding the Fourth Proportional to 2,110.23, 2,908.65 and 1,689.84

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Solution

The fourth proportional to 2,110.23, 2,908.65 and 1,689.84 is: 2,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.23 : 2,908.65 = 1,689.84 : x
  2. Step 2: Convert to fraction form
    2,110.23/2,908.65 = 1,689.84/x
  3. Step 3: Cross multiply
    2,110.23x = 2,908.65 × 1,689.84
  4. Step 4: Simplify right side
    2,110.23x = 4,915,153.12
  5. Step 5: Solve for x
    x = 4,915,153.12/2,110.23
  6. Step 6: Final answer
    x = 2,329.20

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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.