Home / 3,960.08-5,939.36-1,038.32

Finding the Fourth Proportional to 3,960.08, 5,939.36 and 1,038.32

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Solution

The fourth proportional to 3,960.08, 5,939.36 and 1,038.32 is: 1,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.08 : 5,939.36 = 1,038.32 : x
  2. Step 2: Convert to fraction form
    3,960.08/5,939.36 = 1,038.32/x
  3. Step 3: Cross multiply
    3,960.08x = 5,939.36 × 1,038.32
  4. Step 4: Simplify right side
    3,960.08x = 6,166,956.28
  5. Step 5: Solve for x
    x = 6,166,956.28/3,960.08
  6. Step 6: Final answer
    x = 1,557.28

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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.