Home / 3,479.85-5,216.40-1,529.64

Finding the Fourth Proportional to 3,479.85, 5,216.40 and 1,529.64

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Solution

The fourth proportional to 3,479.85, 5,216.40 and 1,529.64 is: 2,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.85 : 5,216.40 = 1,529.64 : x
  2. Step 2: Convert to fraction form
    3,479.85/5,216.40 = 1,529.64/x
  3. Step 3: Cross multiply
    3,479.85x = 5,216.40 × 1,529.64
  4. Step 4: Simplify right side
    3,479.85x = 7,979,214.10
  5. Step 5: Solve for x
    x = 7,979,214.10/3,479.85
  6. Step 6: Final answer
    x = 2,292.98

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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.