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Finding the Fourth Proportional to 2,015.33, 3,023.42 and 628.63

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Solution

The fourth proportional to 2,015.33, 3,023.42 and 628.63 is: 943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.33 : 3,023.42 = 628.63 : x
  2. Step 2: Convert to fraction form
    2,015.33/3,023.42 = 628.63/x
  3. Step 3: Cross multiply
    2,015.33x = 3,023.42 × 628.63
  4. Step 4: Simplify right side
    2,015.33x = 1,900,612.51
  5. Step 5: Solve for x
    x = 1,900,612.51/2,015.33
  6. Step 6: Final answer
    x = 943.08

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1.5x scale

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.