Home / 1,519.48-2,278.12-1,227.34

Finding the Fourth Proportional to 1,519.48, 2,278.12 and 1,227.34

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Solution

The fourth proportional to 1,519.48, 2,278.12 and 1,227.34 is: 1,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.48 : 2,278.12 = 1,227.34 : x
  2. Step 2: Convert to fraction form
    1,519.48/2,278.12 = 1,227.34/x
  3. Step 3: Cross multiply
    1,519.48x = 2,278.12 × 1,227.34
  4. Step 4: Simplify right side
    1,519.48x = 2,796,027.80
  5. Step 5: Solve for x
    x = 2,796,027.80/1,519.48
  6. Step 6: Final answer
    x = 1,840.12

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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.