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Finding the Fourth Proportional to 4,885.62, 6,739.08 and 3,207.12

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Solution

The fourth proportional to 4,885.62, 6,739.08 and 3,207.12 is: 4,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.62 : 6,739.08 = 3,207.12 : x
  2. Step 2: Convert to fraction form
    4,885.62/6,739.08 = 3,207.12/x
  3. Step 3: Cross multiply
    4,885.62x = 6,739.08 × 3,207.12
  4. Step 4: Simplify right side
    4,885.62x = 21,613,038.25
  5. Step 5: Solve for x
    x = 21,613,038.25/4,885.62
  6. Step 6: Final answer
    x = 4,423.81

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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.