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Finding the Fourth Proportional to 1,703.71, 2,550.26 and 1,312.70

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Solution

The fourth proportional to 1,703.71, 2,550.26 and 1,312.70 is: 1,964.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.71 : 2,550.26 = 1,312.70 : x
  2. Step 2: Convert to fraction form
    1,703.71/2,550.26 = 1,312.70/x
  3. Step 3: Cross multiply
    1,703.71x = 2,550.26 × 1,312.70
  4. Step 4: Simplify right side
    1,703.71x = 3,347,726.30
  5. Step 5: Solve for x
    x = 3,347,726.30/1,703.71
  6. Step 6: Final answer
    x = 1,964.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.