Home / 1,910.95-2,869.16-1,418.88

Finding the Fourth Proportional to 1,910.95, 2,869.16 and 1,418.88

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Solution

The fourth proportional to 1,910.95, 2,869.16 and 1,418.88 is: 2,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.95 : 2,869.16 = 1,418.88 : x
  2. Step 2: Convert to fraction form
    1,910.95/2,869.16 = 1,418.88/x
  3. Step 3: Cross multiply
    1,910.95x = 2,869.16 × 1,418.88
  4. Step 4: Simplify right side
    1,910.95x = 4,070,979.40
  5. Step 5: Solve for x
    x = 4,070,979.40/1,910.95
  6. Step 6: Final answer
    x = 2,130.34

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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.