Home / 7,931.08-11,895.68-2,088.15

Finding the Fourth Proportional to 7,931.08, 11,895.68 and 2,088.15

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Solution

The fourth proportional to 7,931.08, 11,895.68 and 2,088.15 is: 3,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.08 : 11,895.68 = 2,088.15 : x
  2. Step 2: Convert to fraction form
    7,931.08/11,895.68 = 2,088.15/x
  3. Step 3: Cross multiply
    7,931.08x = 11,895.68 × 2,088.15
  4. Step 4: Simplify right side
    7,931.08x = 24,839,894.27
  5. Step 5: Solve for x
    x = 24,839,894.27/7,931.08
  6. Step 6: Final answer
    x = 3,131.97

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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.