Home / 6,440.25-9,660.63-2,280.27

Finding the Fourth Proportional to 6,440.25, 9,660.63 and 2,280.27

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Solution

The fourth proportional to 6,440.25, 9,660.63 and 2,280.27 is: 3,420.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.25 : 9,660.63 = 2,280.27 : x
  2. Step 2: Convert to fraction form
    6,440.25/9,660.63 = 2,280.27/x
  3. Step 3: Cross multiply
    6,440.25x = 9,660.63 × 2,280.27
  4. Step 4: Simplify right side
    6,440.25x = 22,028,844.77
  5. Step 5: Solve for x
    x = 22,028,844.77/6,440.25
  6. Step 6: Final answer
    x = 3,420.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.