Home / 7,718.83-11,579.51-2,719.92

Finding the Fourth Proportional to 7,718.83, 11,579.51 and 2,719.92

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Solution

The fourth proportional to 7,718.83, 11,579.51 and 2,719.92 is: 4,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.83 : 11,579.51 = 2,719.92 : x
  2. Step 2: Convert to fraction form
    7,718.83/11,579.51 = 2,719.92/x
  3. Step 3: Cross multiply
    7,718.83x = 11,579.51 × 2,719.92
  4. Step 4: Simplify right side
    7,718.83x = 31,495,340.84
  5. Step 5: Solve for x
    x = 31,495,340.84/7,718.83
  6. Step 6: Final answer
    x = 4,080.33

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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.