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Finding the Fourth Proportional to 2,019.87, 3,030.03 and 558.99

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Solution

The fourth proportional to 2,019.87, 3,030.03 and 558.99 is: 838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.87 : 3,030.03 = 558.99 : x
  2. Step 2: Convert to fraction form
    2,019.87/3,030.03 = 558.99/x
  3. Step 3: Cross multiply
    2,019.87x = 3,030.03 × 558.99
  4. Step 4: Simplify right side
    2,019.87x = 1,693,756.47
  5. Step 5: Solve for x
    x = 1,693,756.47/2,019.87
  6. Step 6: Final answer
    x = 838.55

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