Home / 3,213.60-4,818.24-1,264.80

Finding the Fourth Proportional to 3,213.60, 4,818.24 and 1,264.80

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Solution

The fourth proportional to 3,213.60, 4,818.24 and 1,264.80 is: 1,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.60 : 4,818.24 = 1,264.80 : x
  2. Step 2: Convert to fraction form
    3,213.60/4,818.24 = 1,264.80/x
  3. Step 3: Cross multiply
    3,213.60x = 4,818.24 × 1,264.80
  4. Step 4: Simplify right side
    3,213.60x = 6,094,109.95
  5. Step 5: Solve for x
    x = 6,094,109.95/3,213.60
  6. Step 6: Final answer
    x = 1,896.35

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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.