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Finding the Fourth Proportional to 1,752.83, 2,630.25 and 712.64

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Solution

The fourth proportional to 1,752.83, 2,630.25 and 712.64 is: 1,069.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.83 : 2,630.25 = 712.64 : x
  2. Step 2: Convert to fraction form
    1,752.83/2,630.25 = 712.64/x
  3. Step 3: Cross multiply
    1,752.83x = 2,630.25 × 712.64
  4. Step 4: Simplify right side
    1,752.83x = 1,874,421.36
  5. Step 5: Solve for x
    x = 1,874,421.36/1,752.83
  6. Step 6: Final answer
    x = 1,069.37

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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.