Home / 1,949.08-2,689.72-1,098.26

Finding the Fourth Proportional to 1,949.08, 2,689.72 and 1,098.26

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Solution

The fourth proportional to 1,949.08, 2,689.72 and 1,098.26 is: 1,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.08 : 2,689.72 = 1,098.26 : x
  2. Step 2: Convert to fraction form
    1,949.08/2,689.72 = 1,098.26/x
  3. Step 3: Cross multiply
    1,949.08x = 2,689.72 × 1,098.26
  4. Step 4: Simplify right side
    1,949.08x = 2,953,992.95
  5. Step 5: Solve for x
    x = 2,953,992.95/1,949.08
  6. Step 6: Final answer
    x = 1,515.58

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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.