Home / 2,027.70-2,799.50-1,398.02

Finding the Fourth Proportional to 2,027.70, 2,799.50 and 1,398.02

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Solution

The fourth proportional to 2,027.70, 2,799.50 and 1,398.02 is: 1,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.70 : 2,799.50 = 1,398.02 : x
  2. Step 2: Convert to fraction form
    2,027.70/2,799.50 = 1,398.02/x
  3. Step 3: Cross multiply
    2,027.70x = 2,799.50 × 1,398.02
  4. Step 4: Simplify right side
    2,027.70x = 3,913,756.99
  5. Step 5: Solve for x
    x = 3,913,756.99/2,027.70
  6. Step 6: Final answer
    x = 1,930.15

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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.