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Finding the Fourth Proportional to 1,730.83, 2,596.26 and 432.30

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Solution

The fourth proportional to 1,730.83, 2,596.26 and 432.30 is: 648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.83 : 2,596.26 = 432.30 : x
  2. Step 2: Convert to fraction form
    1,730.83/2,596.26 = 432.30/x
  3. Step 3: Cross multiply
    1,730.83x = 2,596.26 × 432.30
  4. Step 4: Simplify right side
    1,730.83x = 1,122,363.20
  5. Step 5: Solve for x
    x = 1,122,363.20/1,730.83
  6. Step 6: Final answer
    x = 648.45

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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.