Home / 5,129.94-7,688.84-2,354.28

Finding the Fourth Proportional to 5,129.94, 7,688.84 and 2,354.28

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Solution

The fourth proportional to 5,129.94, 7,688.84 and 2,354.28 is: 3,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.94 : 7,688.84 = 2,354.28 : x
  2. Step 2: Convert to fraction form
    5,129.94/7,688.84 = 2,354.28/x
  3. Step 3: Cross multiply
    5,129.94x = 7,688.84 × 2,354.28
  4. Step 4: Simplify right side
    5,129.94x = 18,101,632.02
  5. Step 5: Solve for x
    x = 18,101,632.02/5,129.94
  6. Step 6: Final answer
    x = 3,528.62

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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.