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Finding the Fourth Proportional to 1,169.74, 1,754.90 and 348.00

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Solution

The fourth proportional to 1,169.74, 1,754.90 and 348.00 is: 522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.74 : 1,754.90 = 348.00 : x
  2. Step 2: Convert to fraction form
    1,169.74/1,754.90 = 348.00/x
  3. Step 3: Cross multiply
    1,169.74x = 1,754.90 × 348.00
  4. Step 4: Simplify right side
    1,169.74x = 610,698.18
  5. Step 5: Solve for x
    x = 610,698.18/1,169.74
  6. Step 6: Final answer
    x = 522.08

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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.