Home / 2,020.36-3,030.60-788.05

Finding the Fourth Proportional to 2,020.36, 3,030.60 and 788.05

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Solution

The fourth proportional to 2,020.36, 3,030.60 and 788.05 is: 1,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.36 : 3,030.60 = 788.05 : x
  2. Step 2: Convert to fraction form
    2,020.36/3,030.60 = 788.05/x
  3. Step 3: Cross multiply
    2,020.36x = 3,030.60 × 788.05
  4. Step 4: Simplify right side
    2,020.36x = 2,388,264.33
  5. Step 5: Solve for x
    x = 2,388,264.33/2,020.36
  6. Step 6: Final answer
    x = 1,182.10

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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.