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Finding the Fourth Proportional to 1,894, 2,613.88 and 1,066.16

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Solution

The fourth proportional to 1,894, 2,613.88 and 1,066.16 is: 1,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894 : 2,613.88 = 1,066.16 : x
  2. Step 2: Convert to fraction form
    1,894/2,613.88 = 1,066.16/x
  3. Step 3: Cross multiply
    1,894x = 2,613.88 × 1,066.16
  4. Step 4: Simplify right side
    1,894x = 2,786,814.30
  5. Step 5: Solve for x
    x = 2,786,814.30/1,894
  6. Step 6: Final answer
    x = 1,471.39

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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.