Home / 1,555.62-2,146.14-1,083.39

Finding the Fourth Proportional to 1,555.62, 2,146.14 and 1,083.39

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Solution

The fourth proportional to 1,555.62, 2,146.14 and 1,083.39 is: 1,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.62 : 2,146.14 = 1,083.39 : x
  2. Step 2: Convert to fraction form
    1,555.62/2,146.14 = 1,083.39/x
  3. Step 3: Cross multiply
    1,555.62x = 2,146.14 × 1,083.39
  4. Step 4: Simplify right side
    1,555.62x = 2,325,106.61
  5. Step 5: Solve for x
    x = 2,325,106.61/1,555.62
  6. Step 6: Final answer
    x = 1,494.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.