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Finding the Fourth Proportional to 1,713, 2,368.80 and 1,635.65

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Solution

The fourth proportional to 1,713, 2,368.80 and 1,635.65 is: 2,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713 : 2,368.80 = 1,635.65 : x
  2. Step 2: Convert to fraction form
    1,713/2,368.80 = 1,635.65/x
  3. Step 3: Cross multiply
    1,713x = 2,368.80 × 1,635.65
  4. Step 4: Simplify right side
    1,713x = 3,874,527.72
  5. Step 5: Solve for x
    x = 3,874,527.72/1,713
  6. Step 6: Final answer
    x = 2,261.84

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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.