Home / 4,311.24-6,464.52-1,388.76

Finding the Fourth Proportional to 4,311.24, 6,464.52 and 1,388.76

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Solution

The fourth proportional to 4,311.24, 6,464.52 and 1,388.76 is: 2,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.24 : 6,464.52 = 1,388.76 : x
  2. Step 2: Convert to fraction form
    4,311.24/6,464.52 = 1,388.76/x
  3. Step 3: Cross multiply
    4,311.24x = 6,464.52 × 1,388.76
  4. Step 4: Simplify right side
    4,311.24x = 8,977,666.80
  5. Step 5: Solve for x
    x = 8,977,666.80/4,311.24
  6. Step 6: Final answer
    x = 2,082.39

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1.5x scale

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.