Home / 2,053.31-2,833.57-1,121.81

Finding the Fourth Proportional to 2,053.31, 2,833.57 and 1,121.81

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Solution

The fourth proportional to 2,053.31, 2,833.57 and 1,121.81 is: 1,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.31 : 2,833.57 = 1,121.81 : x
  2. Step 2: Convert to fraction form
    2,053.31/2,833.57 = 1,121.81/x
  3. Step 3: Cross multiply
    2,053.31x = 2,833.57 × 1,121.81
  4. Step 4: Simplify right side
    2,053.31x = 3,178,715.80
  5. Step 5: Solve for x
    x = 3,178,715.80/2,053.31
  6. Step 6: Final answer
    x = 1,548.10

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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.