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Finding the Fourth Proportional to 6,892.64, 10,338.84 and 1,962.32

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Solution

The fourth proportional to 6,892.64, 10,338.84 and 1,962.32 is: 2,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.64 : 10,338.84 = 1,962.32 : x
  2. Step 2: Convert to fraction form
    6,892.64/10,338.84 = 1,962.32/x
  3. Step 3: Cross multiply
    6,892.64x = 10,338.84 × 1,962.32
  4. Step 4: Simplify right side
    6,892.64x = 20,288,112.51
  5. Step 5: Solve for x
    x = 20,288,112.51/6,892.64
  6. Step 6: Final answer
    x = 2,943.45

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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.