Home / 1,390.32-2,083.68-1,244.52

Finding the Fourth Proportional to 1,390.32, 2,083.68 and 1,244.52

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Solution

The fourth proportional to 1,390.32, 2,083.68 and 1,244.52 is: 1,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390.32 : 2,083.68 = 1,244.52 : x
  2. Step 2: Convert to fraction form
    1,390.32/2,083.68 = 1,244.52/x
  3. Step 3: Cross multiply
    1,390.32x = 2,083.68 × 1,244.52
  4. Step 4: Simplify right side
    1,390.32x = 2,593,181.43
  5. Step 5: Solve for x
    x = 2,593,181.43/1,390.32
  6. Step 6: Final answer
    x = 1,865.17

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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.