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Finding the Fourth Proportional to 6,891.58, 10,337.35 and 1,961.29

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Solution

The fourth proportional to 6,891.58, 10,337.35 and 1,961.29 is: 2,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.58 : 10,337.35 = 1,961.29 : x
  2. Step 2: Convert to fraction form
    6,891.58/10,337.35 = 1,961.29/x
  3. Step 3: Cross multiply
    6,891.58x = 10,337.35 × 1,961.29
  4. Step 4: Simplify right side
    6,891.58x = 20,274,541.18
  5. Step 5: Solve for x
    x = 20,274,541.18/6,891.58
  6. Step 6: Final answer
    x = 2,941.93

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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.