Home / 7,889.28-11,840.04-2,963.40

Finding the Fourth Proportional to 7,889.28, 11,840.04 and 2,963.40

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Solution

The fourth proportional to 7,889.28, 11,840.04 and 2,963.40 is: 4,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.28 : 11,840.04 = 2,963.40 : x
  2. Step 2: Convert to fraction form
    7,889.28/11,840.04 = 2,963.40/x
  3. Step 3: Cross multiply
    7,889.28x = 11,840.04 × 2,963.40
  4. Step 4: Simplify right side
    7,889.28x = 35,086,774.54
  5. Step 5: Solve for x
    x = 35,086,774.54/7,889.28
  6. Step 6: Final answer
    x = 4,447.40

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1.5x scale

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.