Home / 1,980.03-2,732.55-1,095.92

Finding the Fourth Proportional to 1,980.03, 2,732.55 and 1,095.92

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Solution

The fourth proportional to 1,980.03, 2,732.55 and 1,095.92 is: 1,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.03 : 2,732.55 = 1,095.92 : x
  2. Step 2: Convert to fraction form
    1,980.03/2,732.55 = 1,095.92/x
  3. Step 3: Cross multiply
    1,980.03x = 2,732.55 × 1,095.92
  4. Step 4: Simplify right side
    1,980.03x = 2,994,642.53
  5. Step 5: Solve for x
    x = 2,994,642.53/1,980.03
  6. Step 6: Final answer
    x = 1,512.42

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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.