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Finding the Fourth Proportional to 2,175.08, 3,262.70 and 940.80

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Solution

The fourth proportional to 2,175.08, 3,262.70 and 940.80 is: 1,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.08 : 3,262.70 = 940.80 : x
  2. Step 2: Convert to fraction form
    2,175.08/3,262.70 = 940.80/x
  3. Step 3: Cross multiply
    2,175.08x = 3,262.70 × 940.80
  4. Step 4: Simplify right side
    2,175.08x = 3,069,548.16
  5. Step 5: Solve for x
    x = 3,069,548.16/2,175.08
  6. Step 6: Final answer
    x = 1,411.23

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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.