Home / 3,928-5,877.36-2,460.32

Finding the Fourth Proportional to 3,928, 5,877.36 and 2,460.32

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Solution

The fourth proportional to 3,928, 5,877.36 and 2,460.32 is: 3,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928 : 5,877.36 = 2,460.32 : x
  2. Step 2: Convert to fraction form
    3,928/5,877.36 = 2,460.32/x
  3. Step 3: Cross multiply
    3,928x = 5,877.36 × 2,460.32
  4. Step 4: Simplify right side
    3,928x = 14,460,186.36
  5. Step 5: Solve for x
    x = 14,460,186.36/3,928
  6. Step 6: Final answer
    x = 3,681.31

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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.