Home / 4,880.48-7,321.79-2,688.08

Finding the Fourth Proportional to 4,880.48, 7,321.79 and 2,688.08

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Solution

The fourth proportional to 4,880.48, 7,321.79 and 2,688.08 is: 4,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.48 : 7,321.79 = 2,688.08 : x
  2. Step 2: Convert to fraction form
    4,880.48/7,321.79 = 2,688.08/x
  3. Step 3: Cross multiply
    4,880.48x = 7,321.79 × 2,688.08
  4. Step 4: Simplify right side
    4,880.48x = 19,681,507.21
  5. Step 5: Solve for x
    x = 19,681,507.21/4,880.48
  6. Step 6: Final answer
    x = 4,032.70

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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.