Home / 7,887.28-11,837.04-2,961.40

Finding the Fourth Proportional to 7,887.28, 11,837.04 and 2,961.40

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Solution

The fourth proportional to 7,887.28, 11,837.04 and 2,961.40 is: 4,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.28 : 11,837.04 = 2,961.40 : x
  2. Step 2: Convert to fraction form
    7,887.28/11,837.04 = 2,961.40/x
  3. Step 3: Cross multiply
    7,887.28x = 11,837.04 × 2,961.40
  4. Step 4: Simplify right side
    7,887.28x = 35,054,210.26
  5. Step 5: Solve for x
    x = 35,054,210.26/7,887.28
  6. Step 6: Final answer
    x = 4,444.40

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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.