Home / 1,381.29-2,073.30-1,015.05

Finding the Fourth Proportional to 1,381.29, 2,073.30 and 1,015.05

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Solution

The fourth proportional to 1,381.29, 2,073.30 and 1,015.05 is: 1,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381.29 : 2,073.30 = 1,015.05 : x
  2. Step 2: Convert to fraction form
    1,381.29/2,073.30 = 1,015.05/x
  3. Step 3: Cross multiply
    1,381.29x = 2,073.30 × 1,015.05
  4. Step 4: Simplify right side
    1,381.29x = 2,104,503.17
  5. Step 5: Solve for x
    x = 2,104,503.17/1,381.29
  6. Step 6: Final answer
    x = 1,523.58

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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.