Home / 3,555.72-5,331.29-1,477.16

Finding the Fourth Proportional to 3,555.72, 5,331.29 and 1,477.16

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Solution

The fourth proportional to 3,555.72, 5,331.29 and 1,477.16 is: 2,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.72 : 5,331.29 = 1,477.16 : x
  2. Step 2: Convert to fraction form
    3,555.72/5,331.29 = 1,477.16/x
  3. Step 3: Cross multiply
    3,555.72x = 5,331.29 × 1,477.16
  4. Step 4: Simplify right side
    3,555.72x = 7,875,141.68
  5. Step 5: Solve for x
    x = 7,875,141.68/3,555.72
  6. Step 6: Final answer
    x = 2,214.78

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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.