Home / 7,930.32-11,895-2,086.92

Finding the Fourth Proportional to 7,930.32, 11,895 and 2,086.92

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Solution

The fourth proportional to 7,930.32, 11,895 and 2,086.92 is: 3,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.32 : 11,895 = 2,086.92 : x
  2. Step 2: Convert to fraction form
    7,930.32/11,895 = 2,086.92/x
  3. Step 3: Cross multiply
    7,930.32x = 11,895 × 2,086.92
  4. Step 4: Simplify right side
    7,930.32x = 24,823,913.40
  5. Step 5: Solve for x
    x = 24,823,913.40/7,930.32
  6. Step 6: Final answer
    x = 3,130.25

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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.