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Finding the Fourth Proportional to 4,192.79, 6,289.14 and 1,726.88

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Solution

The fourth proportional to 4,192.79, 6,289.14 and 1,726.88 is: 2,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.79 : 6,289.14 = 1,726.88 : x
  2. Step 2: Convert to fraction form
    4,192.79/6,289.14 = 1,726.88/x
  3. Step 3: Cross multiply
    4,192.79x = 6,289.14 × 1,726.88
  4. Step 4: Simplify right side
    4,192.79x = 10,860,590.08
  5. Step 5: Solve for x
    x = 10,860,590.08/4,192.79
  6. Step 6: Final answer
    x = 2,590.30

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1.5x scale

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.