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Finding the Fourth Proportional to 4,312.60, 6,468.60 and 1,192.78

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Solution

The fourth proportional to 4,312.60, 6,468.60 and 1,192.78 is: 1,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.60 : 6,468.60 = 1,192.78 : x
  2. Step 2: Convert to fraction form
    4,312.60/6,468.60 = 1,192.78/x
  3. Step 3: Cross multiply
    4,312.60x = 6,468.60 × 1,192.78
  4. Step 4: Simplify right side
    4,312.60x = 7,715,616.71
  5. Step 5: Solve for x
    x = 7,715,616.71/4,312.60
  6. Step 6: Final answer
    x = 1,789.09

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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.