Home / 7,826.97-11,740.13-2,280.20

Finding the Fourth Proportional to 7,826.97, 11,740.13 and 2,280.20

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Solution

The fourth proportional to 7,826.97, 11,740.13 and 2,280.20 is: 3,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.97 : 11,740.13 = 2,280.20 : x
  2. Step 2: Convert to fraction form
    7,826.97/11,740.13 = 2,280.20/x
  3. Step 3: Cross multiply
    7,826.97x = 11,740.13 × 2,280.20
  4. Step 4: Simplify right side
    7,826.97x = 26,769,774.32
  5. Step 5: Solve for x
    x = 26,769,774.32/7,826.97
  6. Step 6: Final answer
    x = 3,420.20

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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.