Home / 3,260.07-4,889.10-919.47

Finding the Fourth Proportional to 3,260.07, 4,889.10 and 919.47

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Solution

The fourth proportional to 3,260.07, 4,889.10 and 919.47 is: 1,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.07 : 4,889.10 = 919.47 : x
  2. Step 2: Convert to fraction form
    3,260.07/4,889.10 = 919.47/x
  3. Step 3: Cross multiply
    3,260.07x = 4,889.10 × 919.47
  4. Step 4: Simplify right side
    3,260.07x = 4,495,380.78
  5. Step 5: Solve for x
    x = 4,495,380.78/3,260.07
  6. Step 6: Final answer
    x = 1,378.92

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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.