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Finding the Fourth Proportional to 2,467.40, 3,400.80 and 1,932.80

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Solution

The fourth proportional to 2,467.40, 3,400.80 and 1,932.80 is: 2,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,467.40 : 3,400.80 = 1,932.80 : x
  2. Step 2: Convert to fraction form
    2,467.40/3,400.80 = 1,932.80/x
  3. Step 3: Cross multiply
    2,467.40x = 3,400.80 × 1,932.80
  4. Step 4: Simplify right side
    2,467.40x = 6,573,066.24
  5. Step 5: Solve for x
    x = 6,573,066.24/2,467.40
  6. Step 6: Final answer
    x = 2,663.96

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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.