Home / 4,805.68-6,630.30-2,816.20

Finding the Fourth Proportional to 4,805.68, 6,630.30 and 2,816.20

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Solution

The fourth proportional to 4,805.68, 6,630.30 and 2,816.20 is: 3,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.68 : 6,630.30 = 2,816.20 : x
  2. Step 2: Convert to fraction form
    4,805.68/6,630.30 = 2,816.20/x
  3. Step 3: Cross multiply
    4,805.68x = 6,630.30 × 2,816.20
  4. Step 4: Simplify right side
    4,805.68x = 18,672,250.86
  5. Step 5: Solve for x
    x = 18,672,250.86/4,805.68
  6. Step 6: Final answer
    x = 3,885.45

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Double scale
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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.