Home / 6,261.24-8,639.40-3,608.76

Finding the Fourth Proportional to 6,261.24, 8,639.40 and 3,608.76

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Solution

The fourth proportional to 6,261.24, 8,639.40 and 3,608.76 is: 4,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.24 : 8,639.40 = 3,608.76 : x
  2. Step 2: Convert to fraction form
    6,261.24/8,639.40 = 3,608.76/x
  3. Step 3: Cross multiply
    6,261.24x = 8,639.40 × 3,608.76
  4. Step 4: Simplify right side
    6,261.24x = 31,177,521.14
  5. Step 5: Solve for x
    x = 31,177,521.14/6,261.24
  6. Step 6: Final answer
    x = 4,979.45

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.