Home / 2,020.59-3,031.65-788.87

Finding the Fourth Proportional to 2,020.59, 3,031.65 and 788.87

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Solution

The fourth proportional to 2,020.59, 3,031.65 and 788.87 is: 1,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.59 : 3,031.65 = 788.87 : x
  2. Step 2: Convert to fraction form
    2,020.59/3,031.65 = 788.87/x
  3. Step 3: Cross multiply
    2,020.59x = 3,031.65 × 788.87
  4. Step 4: Simplify right side
    2,020.59x = 2,391,562.58
  5. Step 5: Solve for x
    x = 2,391,562.58/2,020.59
  6. Step 6: Final answer
    x = 1,183.60

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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.