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Finding the Fourth Proportional to 2,028.87, 2,799.87 and 1,330.23

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Solution

The fourth proportional to 2,028.87, 2,799.87 and 1,330.23 is: 1,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.87 : 2,799.87 = 1,330.23 : x
  2. Step 2: Convert to fraction form
    2,028.87/2,799.87 = 1,330.23/x
  3. Step 3: Cross multiply
    2,028.87x = 2,799.87 × 1,330.23
  4. Step 4: Simplify right side
    2,028.87x = 3,724,471.07
  5. Step 5: Solve for x
    x = 3,724,471.07/2,028.87
  6. Step 6: Final answer
    x = 1,835.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.