Home / 4,218.88-6,328.32-1,587.04

Finding the Fourth Proportional to 4,218.88, 6,328.32 and 1,587.04

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Solution

The fourth proportional to 4,218.88, 6,328.32 and 1,587.04 is: 2,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.88 : 6,328.32 = 1,587.04 : x
  2. Step 2: Convert to fraction form
    4,218.88/6,328.32 = 1,587.04/x
  3. Step 3: Cross multiply
    4,218.88x = 6,328.32 × 1,587.04
  4. Step 4: Simplify right side
    4,218.88x = 10,043,296.97
  5. Step 5: Solve for x
    x = 10,043,296.97/4,218.88
  6. Step 6: Final answer
    x = 2,380.56

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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.