Home / 3,981.75-5,495.42-2,410.76

Finding the Fourth Proportional to 3,981.75, 5,495.42 and 2,410.76

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Solution

The fourth proportional to 3,981.75, 5,495.42 and 2,410.76 is: 3,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.75 : 5,495.42 = 2,410.76 : x
  2. Step 2: Convert to fraction form
    3,981.75/5,495.42 = 2,410.76/x
  3. Step 3: Cross multiply
    3,981.75x = 5,495.42 × 2,410.76
  4. Step 4: Simplify right side
    3,981.75x = 13,248,117.27
  5. Step 5: Solve for x
    x = 13,248,117.27/3,981.75
  6. Step 6: Final answer
    x = 3,327.21

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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.