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Finding the Fourth Proportional to 1,788.49, 2,468.27 and 992.07

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Solution

The fourth proportional to 1,788.49, 2,468.27 and 992.07 is: 1,369.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.49 : 2,468.27 = 992.07 : x
  2. Step 2: Convert to fraction form
    1,788.49/2,468.27 = 992.07/x
  3. Step 3: Cross multiply
    1,788.49x = 2,468.27 × 992.07
  4. Step 4: Simplify right side
    1,788.49x = 2,448,695.63
  5. Step 5: Solve for x
    x = 2,448,695.63/1,788.49
  6. Step 6: Final answer
    x = 1,369.14

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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.