Home / 3,977.81-5,961.40-2,223.35

Finding the Fourth Proportional to 3,977.81, 5,961.40 and 2,223.35

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Solution

The fourth proportional to 3,977.81, 5,961.40 and 2,223.35 is: 3,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.81 : 5,961.40 = 2,223.35 : x
  2. Step 2: Convert to fraction form
    3,977.81/5,961.40 = 2,223.35/x
  3. Step 3: Cross multiply
    3,977.81x = 5,961.40 × 2,223.35
  4. Step 4: Simplify right side
    3,977.81x = 13,254,265.68
  5. Step 5: Solve for x
    x = 13,254,265.68/3,977.81
  6. Step 6: Final answer
    x = 3,332.05

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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.