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Finding the Fourth Proportional to 6,843.02, 9,429.41 and 4,719.20

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Solution

The fourth proportional to 6,843.02, 9,429.41 and 4,719.20 is: 6,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843.02 : 9,429.41 = 4,719.20 : x
  2. Step 2: Convert to fraction form
    6,843.02/9,429.41 = 4,719.20/x
  3. Step 3: Cross multiply
    6,843.02x = 9,429.41 × 4,719.20
  4. Step 4: Simplify right side
    6,843.02x = 44,499,236.32
  5. Step 5: Solve for x
    x = 44,499,236.32/6,843.02
  6. Step 6: Final answer
    x = 6,502.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.