Home / 3,555.48-4,905.42-1,983.27

Finding the Fourth Proportional to 3,555.48, 4,905.42 and 1,983.27

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Solution

The fourth proportional to 3,555.48, 4,905.42 and 1,983.27 is: 2,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.48 : 4,905.42 = 1,983.27 : x
  2. Step 2: Convert to fraction form
    3,555.48/4,905.42 = 1,983.27/x
  3. Step 3: Cross multiply
    3,555.48x = 4,905.42 × 1,983.27
  4. Step 4: Simplify right side
    3,555.48x = 9,728,772.32
  5. Step 5: Solve for x
    x = 9,728,772.32/3,555.48
  6. Step 6: Final answer
    x = 2,736.28

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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.