Home / 7,931.72-11,896.64-2,088.79

Finding the Fourth Proportional to 7,931.72, 11,896.64 and 2,088.79

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Solution

The fourth proportional to 7,931.72, 11,896.64 and 2,088.79 is: 3,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.72 : 11,896.64 = 2,088.79 : x
  2. Step 2: Convert to fraction form
    7,931.72/11,896.64 = 2,088.79/x
  3. Step 3: Cross multiply
    7,931.72x = 11,896.64 × 2,088.79
  4. Step 4: Simplify right side
    7,931.72x = 24,849,550.31
  5. Step 5: Solve for x
    x = 24,849,550.31/7,931.72
  6. Step 6: Final answer
    x = 3,132.93

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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.