Home / 2,083.18-3,125.38-784.75

Finding the Fourth Proportional to 2,083.18, 3,125.38 and 784.75

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Solution

The fourth proportional to 2,083.18, 3,125.38 and 784.75 is: 1,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.18 : 3,125.38 = 784.75 : x
  2. Step 2: Convert to fraction form
    2,083.18/3,125.38 = 784.75/x
  3. Step 3: Cross multiply
    2,083.18x = 3,125.38 × 784.75
  4. Step 4: Simplify right side
    2,083.18x = 2,452,641.96
  5. Step 5: Solve for x
    x = 2,452,641.96/2,083.18
  6. Step 6: Final answer
    x = 1,177.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.