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Finding the Fourth Proportional to 6,891.29, 10,337.05 and 1,961.06

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Solution

The fourth proportional to 6,891.29, 10,337.05 and 1,961.06 is: 2,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.29 : 10,337.05 = 1,961.06 : x
  2. Step 2: Convert to fraction form
    6,891.29/10,337.05 = 1,961.06/x
  3. Step 3: Cross multiply
    6,891.29x = 10,337.05 × 1,961.06
  4. Step 4: Simplify right side
    6,891.29x = 20,271,526.04
  5. Step 5: Solve for x
    x = 20,271,526.04/6,891.29
  6. Step 6: Final answer
    x = 2,941.62

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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.