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Finding the Fourth Proportional to 4,388, 6,055.20 and 2,499.20

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Solution

The fourth proportional to 4,388, 6,055.20 and 2,499.20 is: 3,448.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,388 : 6,055.20 = 2,499.20 : x
  2. Step 2: Convert to fraction form
    4,388/6,055.20 = 2,499.20/x
  3. Step 3: Cross multiply
    4,388x = 6,055.20 × 2,499.20
  4. Step 4: Simplify right side
    4,388x = 15,133,155.84
  5. Step 5: Solve for x
    x = 15,133,155.84/4,388
  6. Step 6: Final answer
    x = 3,448.76

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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.