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Finding the Fourth Proportional to 1,709.27, 2,358.71 and 963.22

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Solution

The fourth proportional to 1,709.27, 2,358.71 and 963.22 is: 1,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.27 : 2,358.71 = 963.22 : x
  2. Step 2: Convert to fraction form
    1,709.27/2,358.71 = 963.22/x
  3. Step 3: Cross multiply
    1,709.27x = 2,358.71 × 963.22
  4. Step 4: Simplify right side
    1,709.27x = 2,271,953.16
  5. Step 5: Solve for x
    x = 2,271,953.16/1,709.27
  6. Step 6: Final answer
    x = 1,329.20

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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.