Home / 3,988.05-5,496.42-3,529.77

Finding the Fourth Proportional to 3,988.05, 5,496.42 and 3,529.77

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Solution

The fourth proportional to 3,988.05, 5,496.42 and 3,529.77 is: 4,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.05 : 5,496.42 = 3,529.77 : x
  2. Step 2: Convert to fraction form
    3,988.05/5,496.42 = 3,529.77/x
  3. Step 3: Cross multiply
    3,988.05x = 5,496.42 × 3,529.77
  4. Step 4: Simplify right side
    3,988.05x = 19,401,098.42
  5. Step 5: Solve for x
    x = 19,401,098.42/3,988.05
  6. Step 6: Final answer
    x = 4,864.81

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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.