Home / 1,949.58-2,689.95-1,110.09

Finding the Fourth Proportional to 1,949.58, 2,689.95 and 1,110.09

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Solution

The fourth proportional to 1,949.58, 2,689.95 and 1,110.09 is: 1,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.58 : 2,689.95 = 1,110.09 : x
  2. Step 2: Convert to fraction form
    1,949.58/2,689.95 = 1,110.09/x
  3. Step 3: Cross multiply
    1,949.58x = 2,689.95 × 1,110.09
  4. Step 4: Simplify right side
    1,949.58x = 2,986,086.60
  5. Step 5: Solve for x
    x = 2,986,086.60/1,949.58
  6. Step 6: Final answer
    x = 1,531.66

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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.