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Finding the Fourth Proportional to 3,479.72, 5,218.44 and 1,014.70

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Solution

The fourth proportional to 3,479.72, 5,218.44 and 1,014.70 is: 1,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.72 : 5,218.44 = 1,014.70 : x
  2. Step 2: Convert to fraction form
    3,479.72/5,218.44 = 1,014.70/x
  3. Step 3: Cross multiply
    3,479.72x = 5,218.44 × 1,014.70
  4. Step 4: Simplify right side
    3,479.72x = 5,295,151.07
  5. Step 5: Solve for x
    x = 5,295,151.07/3,479.72
  6. Step 6: Final answer
    x = 1,521.72

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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.