Home / 3,981.96-5,496.64-2,655.20

Finding the Fourth Proportional to 3,981.96, 5,496.64 and 2,655.20

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Solution

The fourth proportional to 3,981.96, 5,496.64 and 2,655.20 is: 3,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.96 : 5,496.64 = 2,655.20 : x
  2. Step 2: Convert to fraction form
    3,981.96/5,496.64 = 2,655.20/x
  3. Step 3: Cross multiply
    3,981.96x = 5,496.64 × 2,655.20
  4. Step 4: Simplify right side
    3,981.96x = 14,594,678.53
  5. Step 5: Solve for x
    x = 14,594,678.53/3,981.96
  6. Step 6: Final answer
    x = 3,665.20

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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.