Home / 7,817.28-10,786.85-4,459.90

Finding the Fourth Proportional to 7,817.28, 10,786.85 and 4,459.90

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Solution

The fourth proportional to 7,817.28, 10,786.85 and 4,459.90 is: 6,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.28 : 10,786.85 = 4,459.90 : x
  2. Step 2: Convert to fraction form
    7,817.28/10,786.85 = 4,459.90/x
  3. Step 3: Cross multiply
    7,817.28x = 10,786.85 × 4,459.90
  4. Step 4: Simplify right side
    7,817.28x = 48,108,250.02
  5. Step 5: Solve for x
    x = 48,108,250.02/7,817.28
  6. Step 6: Final answer
    x = 6,154.09

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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.