Home / 1,083.36-1,633.08-1,020.72

Finding the Fourth Proportional to 1,083.36, 1,633.08 and 1,020.72

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Solution

The fourth proportional to 1,083.36, 1,633.08 and 1,020.72 is: 1,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.36 : 1,633.08 = 1,020.72 : x
  2. Step 2: Convert to fraction form
    1,083.36/1,633.08 = 1,020.72/x
  3. Step 3: Cross multiply
    1,083.36x = 1,633.08 × 1,020.72
  4. Step 4: Simplify right side
    1,083.36x = 1,666,917.42
  5. Step 5: Solve for x
    x = 1,666,917.42/1,083.36
  6. Step 6: Final answer
    x = 1,538.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.