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Finding the Fourth Proportional to 1,732.30, 2,392.05 and 1,069.90

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Solution

The fourth proportional to 1,732.30, 2,392.05 and 1,069.90 is: 1,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.30 : 2,392.05 = 1,069.90 : x
  2. Step 2: Convert to fraction form
    1,732.30/2,392.05 = 1,069.90/x
  3. Step 3: Cross multiply
    1,732.30x = 2,392.05 × 1,069.90
  4. Step 4: Simplify right side
    1,732.30x = 2,559,254.30
  5. Step 5: Solve for x
    x = 2,559,254.30/1,732.30
  6. Step 6: Final answer
    x = 1,477.37

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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.