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Finding the Fourth Proportional to 7,328.31, 10,992.48 and 2,946.15

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Solution

The fourth proportional to 7,328.31, 10,992.48 and 2,946.15 is: 4,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.31 : 10,992.48 = 2,946.15 : x
  2. Step 2: Convert to fraction form
    7,328.31/10,992.48 = 2,946.15/x
  3. Step 3: Cross multiply
    7,328.31x = 10,992.48 × 2,946.15
  4. Step 4: Simplify right side
    7,328.31x = 32,385,494.95
  5. Step 5: Solve for x
    x = 32,385,494.95/7,328.31
  6. Step 6: Final answer
    x = 4,419.23

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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.