Home / 5,477.28-8,217.30-1,581.72

Finding the Fourth Proportional to 5,477.28, 8,217.30 and 1,581.72

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Solution

The fourth proportional to 5,477.28, 8,217.30 and 1,581.72 is: 2,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.28 : 8,217.30 = 1,581.72 : x
  2. Step 2: Convert to fraction form
    5,477.28/8,217.30 = 1,581.72/x
  3. Step 3: Cross multiply
    5,477.28x = 8,217.30 × 1,581.72
  4. Step 4: Simplify right side
    5,477.28x = 12,997,467.76
  5. Step 5: Solve for x
    x = 12,997,467.76/5,477.28
  6. Step 6: Final answer
    x = 2,372.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.