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Finding the Fourth Proportional to 1,894.24, 2,613.28 and 1,304

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Solution

The fourth proportional to 1,894.24, 2,613.28 and 1,304 is: 1,798.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.24 : 2,613.28 = 1,304 : x
  2. Step 2: Convert to fraction form
    1,894.24/2,613.28 = 1,304/x
  3. Step 3: Cross multiply
    1,894.24x = 2,613.28 × 1,304
  4. Step 4: Simplify right side
    1,894.24x = 3,407,717.12
  5. Step 5: Solve for x
    x = 3,407,717.12/1,894.24
  6. Step 6: Final answer
    x = 1,798.99

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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.