Home / 6,999.28-10,492.85-2,616.78

Finding the Fourth Proportional to 6,999.28, 10,492.85 and 2,616.78

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Solution

The fourth proportional to 6,999.28, 10,492.85 and 2,616.78 is: 3,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.28 : 10,492.85 = 2,616.78 : x
  2. Step 2: Convert to fraction form
    6,999.28/10,492.85 = 2,616.78/x
  3. Step 3: Cross multiply
    6,999.28x = 10,492.85 × 2,616.78
  4. Step 4: Simplify right side
    6,999.28x = 27,457,480.02
  5. Step 5: Solve for x
    x = 27,457,480.02/6,999.28
  6. Step 6: Final answer
    x = 3,922.90

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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.