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Finding the Fourth Proportional to 6,809.74, 9,398.46 and 4,158.68

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Solution

The fourth proportional to 6,809.74, 9,398.46 and 4,158.68 is: 5,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.74 : 9,398.46 = 4,158.68 : x
  2. Step 2: Convert to fraction form
    6,809.74/9,398.46 = 4,158.68/x
  3. Step 3: Cross multiply
    6,809.74x = 9,398.46 × 4,158.68
  4. Step 4: Simplify right side
    6,809.74x = 39,085,187.63
  5. Step 5: Solve for x
    x = 39,085,187.63/6,809.74
  6. Step 6: Final answer
    x = 5,739.60

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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.