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Finding the Fourth Proportional to 2,020.05, 3,030.08 and 559.08

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Solution

The fourth proportional to 2,020.05, 3,030.08 and 559.08 is: 838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.05 : 3,030.08 = 559.08 : x
  2. Step 2: Convert to fraction form
    2,020.05/3,030.08 = 559.08/x
  3. Step 3: Cross multiply
    2,020.05x = 3,030.08 × 559.08
  4. Step 4: Simplify right side
    2,020.05x = 1,694,054.33
  5. Step 5: Solve for x
    x = 1,694,054.33/2,020.05
  6. Step 6: Final answer
    x = 838.62

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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.