Home / 1,980.24-2,732.64-1,095.96

Finding the Fourth Proportional to 1,980.24, 2,732.64 and 1,095.96

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Solution

The fourth proportional to 1,980.24, 2,732.64 and 1,095.96 is: 1,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.24 : 2,732.64 = 1,095.96 : x
  2. Step 2: Convert to fraction form
    1,980.24/2,732.64 = 1,095.96/x
  3. Step 3: Cross multiply
    1,980.24x = 2,732.64 × 1,095.96
  4. Step 4: Simplify right side
    1,980.24x = 2,994,864.13
  5. Step 5: Solve for x
    x = 2,994,864.13/1,980.24
  6. Step 6: Final answer
    x = 1,512.37

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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.