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Finding the Fourth Proportional to 1,713.78, 2,364.89 and 967.81

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Solution

The fourth proportional to 1,713.78, 2,364.89 and 967.81 is: 1,335.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.78 : 2,364.89 = 967.81 : x
  2. Step 2: Convert to fraction form
    1,713.78/2,364.89 = 967.81/x
  3. Step 3: Cross multiply
    1,713.78x = 2,364.89 × 967.81
  4. Step 4: Simplify right side
    1,713.78x = 2,288,764.19
  5. Step 5: Solve for x
    x = 2,288,764.19/1,713.78
  6. Step 6: Final answer
    x = 1,335.51

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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.