Home / 4,297.28-6,436.32-1,981.76

Finding the Fourth Proportional to 4,297.28, 6,436.32 and 1,981.76

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Solution

The fourth proportional to 4,297.28, 6,436.32 and 1,981.76 is: 2,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,297.28 : 6,436.32 = 1,981.76 : x
  2. Step 2: Convert to fraction form
    4,297.28/6,436.32 = 1,981.76/x
  3. Step 3: Cross multiply
    4,297.28x = 6,436.32 × 1,981.76
  4. Step 4: Simplify right side
    4,297.28x = 12,755,241.52
  5. Step 5: Solve for x
    x = 12,755,241.52/4,297.28
  6. Step 6: Final answer
    x = 2,968.21

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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.