Home / 10,719.88-16,079.64-2,928.66

Finding the Fourth Proportional to 10,719.88, 16,079.64 and 2,928.66

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Solution

The fourth proportional to 10,719.88, 16,079.64 and 2,928.66 is: 4,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.88 : 16,079.64 = 2,928.66 : x
  2. Step 2: Convert to fraction form
    10,719.88/16,079.64 = 2,928.66/x
  3. Step 3: Cross multiply
    10,719.88x = 16,079.64 × 2,928.66
  4. Step 4: Simplify right side
    10,719.88x = 47,091,798.48
  5. Step 5: Solve for x
    x = 47,091,798.48/10,719.88
  6. Step 6: Final answer
    x = 4,392.94

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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.