Home / 4,638.87-6,398.15-3,222.56

Finding the Fourth Proportional to 4,638.87, 6,398.15 and 3,222.56

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Solution

The fourth proportional to 4,638.87, 6,398.15 and 3,222.56 is: 4,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.87 : 6,398.15 = 3,222.56 : x
  2. Step 2: Convert to fraction form
    4,638.87/6,398.15 = 3,222.56/x
  3. Step 3: Cross multiply
    4,638.87x = 6,398.15 × 3,222.56
  4. Step 4: Simplify right side
    4,638.87x = 20,618,374.16
  5. Step 5: Solve for x
    x = 20,618,374.16/4,638.87
  6. Step 6: Final answer
    x = 4,444.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.