Home / 1,448.90-2,170.61-1,156.39

Finding the Fourth Proportional to 1,448.90, 2,170.61 and 1,156.39

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Solution

The fourth proportional to 1,448.90, 2,170.61 and 1,156.39 is: 1,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.90 : 2,170.61 = 1,156.39 : x
  2. Step 2: Convert to fraction form
    1,448.90/2,170.61 = 1,156.39/x
  3. Step 3: Cross multiply
    1,448.90x = 2,170.61 × 1,156.39
  4. Step 4: Simplify right side
    1,448.90x = 2,510,083.54
  5. Step 5: Solve for x
    x = 2,510,083.54/1,448.90
  6. Step 6: Final answer
    x = 1,732.40

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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.