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Finding the Fourth Proportional to 2,015.47, 3,024.02 and 628.75

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Solution

The fourth proportional to 2,015.47, 3,024.02 and 628.75 is: 943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.47 : 3,024.02 = 628.75 : x
  2. Step 2: Convert to fraction form
    2,015.47/3,024.02 = 628.75/x
  3. Step 3: Cross multiply
    2,015.47x = 3,024.02 × 628.75
  4. Step 4: Simplify right side
    2,015.47x = 1,901,352.58
  5. Step 5: Solve for x
    x = 1,901,352.58/2,015.47
  6. Step 6: Final answer
    x = 943.38

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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.