Home / 1,865.34-2,798.82-1,249.20

Finding the Fourth Proportional to 1,865.34, 2,798.82 and 1,249.20

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Solution

The fourth proportional to 1,865.34, 2,798.82 and 1,249.20 is: 1,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.34 : 2,798.82 = 1,249.20 : x
  2. Step 2: Convert to fraction form
    1,865.34/2,798.82 = 1,249.20/x
  3. Step 3: Cross multiply
    1,865.34x = 2,798.82 × 1,249.20
  4. Step 4: Simplify right side
    1,865.34x = 3,496,285.94
  5. Step 5: Solve for x
    x = 3,496,285.94/1,865.34
  6. Step 6: Final answer
    x = 1,874.34

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1.5x scale

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.