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Finding the Fourth Proportional to 1,784.36, 2,676.70 and 468.30

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Solution

The fourth proportional to 1,784.36, 2,676.70 and 468.30 is: 702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.36 : 2,676.70 = 468.30 : x
  2. Step 2: Convert to fraction form
    1,784.36/2,676.70 = 468.30/x
  3. Step 3: Cross multiply
    1,784.36x = 2,676.70 × 468.30
  4. Step 4: Simplify right side
    1,784.36x = 1,253,498.61
  5. Step 5: Solve for x
    x = 1,253,498.61/1,784.36
  6. Step 6: Final answer
    x = 702.49

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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.