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Finding the Fourth Proportional to 3,901.53, 5,384.48 and 2,223.48

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Solution

The fourth proportional to 3,901.53, 5,384.48 and 2,223.48 is: 3,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.53 : 5,384.48 = 2,223.48 : x
  2. Step 2: Convert to fraction form
    3,901.53/5,384.48 = 2,223.48/x
  3. Step 3: Cross multiply
    3,901.53x = 5,384.48 × 2,223.48
  4. Step 4: Simplify right side
    3,901.53x = 11,972,283.59
  5. Step 5: Solve for x
    x = 11,972,283.59/3,901.53
  6. Step 6: Final answer
    x = 3,068.61

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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.