Home / 1,898.46-2,620.26-1,101.90

Finding the Fourth Proportional to 1,898.46, 2,620.26 and 1,101.90

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Solution

The fourth proportional to 1,898.46, 2,620.26 and 1,101.90 is: 1,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.46 : 2,620.26 = 1,101.90 : x
  2. Step 2: Convert to fraction form
    1,898.46/2,620.26 = 1,101.90/x
  3. Step 3: Cross multiply
    1,898.46x = 2,620.26 × 1,101.90
  4. Step 4: Simplify right side
    1,898.46x = 2,887,264.49
  5. Step 5: Solve for x
    x = 2,887,264.49/1,898.46
  6. Step 6: Final answer
    x = 1,520.85

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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.