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Finding the Fourth Proportional to 1,666.93, 2,500.41 and 627.49

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Solution

The fourth proportional to 1,666.93, 2,500.41 and 627.49 is: 941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.93 : 2,500.41 = 627.49 : x
  2. Step 2: Convert to fraction form
    1,666.93/2,500.41 = 627.49/x
  3. Step 3: Cross multiply
    1,666.93x = 2,500.41 × 627.49
  4. Step 4: Simplify right side
    1,666.93x = 1,568,982.27
  5. Step 5: Solve for x
    x = 1,568,982.27/1,666.93
  6. Step 6: Final answer
    x = 941.24

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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.