Home / 6,461.20-9,690.08-2,761.60

Finding the Fourth Proportional to 6,461.20, 9,690.08 and 2,761.60

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Solution

The fourth proportional to 6,461.20, 9,690.08 and 2,761.60 is: 4,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.20 : 9,690.08 = 2,761.60 : x
  2. Step 2: Convert to fraction form
    6,461.20/9,690.08 = 2,761.60/x
  3. Step 3: Cross multiply
    6,461.20x = 9,690.08 × 2,761.60
  4. Step 4: Simplify right side
    6,461.20x = 26,760,124.93
  5. Step 5: Solve for x
    x = 26,760,124.93/6,461.20
  6. Step 6: Final answer
    x = 4,141.66

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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.