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Finding the Fourth Proportional to 2,020.68, 3,030.68 and 559.58

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Solution

The fourth proportional to 2,020.68, 3,030.68 and 559.58 is: 839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.68 : 3,030.68 = 559.58 : x
  2. Step 2: Convert to fraction form
    2,020.68/3,030.68 = 559.58/x
  3. Step 3: Cross multiply
    2,020.68x = 3,030.68 × 559.58
  4. Step 4: Simplify right side
    2,020.68x = 1,695,894.16
  5. Step 5: Solve for x
    x = 1,695,894.16/2,020.68
  6. Step 6: Final answer
    x = 839.27

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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.