Home / 1,868.98-2,579.22-1,029.75

Finding the Fourth Proportional to 1,868.98, 2,579.22 and 1,029.75

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Solution

The fourth proportional to 1,868.98, 2,579.22 and 1,029.75 is: 1,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.98 : 2,579.22 = 1,029.75 : x
  2. Step 2: Convert to fraction form
    1,868.98/2,579.22 = 1,029.75/x
  3. Step 3: Cross multiply
    1,868.98x = 2,579.22 × 1,029.75
  4. Step 4: Simplify right side
    1,868.98x = 2,655,951.80
  5. Step 5: Solve for x
    x = 2,655,951.80/1,868.98
  6. Step 6: Final answer
    x = 1,421.07

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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.