Home / 1,419.82-2,125.62-1,283.20

Finding the Fourth Proportional to 1,419.82, 2,125.62 and 1,283.20

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Solution

The fourth proportional to 1,419.82, 2,125.62 and 1,283.20 is: 1,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.82 : 2,125.62 = 1,283.20 : x
  2. Step 2: Convert to fraction form
    1,419.82/2,125.62 = 1,283.20/x
  3. Step 3: Cross multiply
    1,419.82x = 2,125.62 × 1,283.20
  4. Step 4: Simplify right side
    1,419.82x = 2,727,595.58
  5. Step 5: Solve for x
    x = 2,727,595.58/1,419.82
  6. Step 6: Final answer
    x = 1,921.09

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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.