Home / 3,955.20-5,461.80-3,174.96

Finding the Fourth Proportional to 3,955.20, 5,461.80 and 3,174.96

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Solution

The fourth proportional to 3,955.20, 5,461.80 and 3,174.96 is: 4,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.20 : 5,461.80 = 3,174.96 : x
  2. Step 2: Convert to fraction form
    3,955.20/5,461.80 = 3,174.96/x
  3. Step 3: Cross multiply
    3,955.20x = 5,461.80 × 3,174.96
  4. Step 4: Simplify right side
    3,955.20x = 17,340,996.53
  5. Step 5: Solve for x
    x = 17,340,996.53/3,955.20
  6. Step 6: Final answer
    x = 4,384.35

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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.