Home / 6,636.76-9,156.54-3,840.28

Finding the Fourth Proportional to 6,636.76, 9,156.54 and 3,840.28

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Solution

The fourth proportional to 6,636.76, 9,156.54 and 3,840.28 is: 5,298.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.76 : 9,156.54 = 3,840.28 : x
  2. Step 2: Convert to fraction form
    6,636.76/9,156.54 = 3,840.28/x
  3. Step 3: Cross multiply
    6,636.76x = 9,156.54 × 3,840.28
  4. Step 4: Simplify right side
    6,636.76x = 35,163,677.43
  5. Step 5: Solve for x
    x = 35,163,677.43/6,636.76
  6. Step 6: Final answer
    x = 5,298.32

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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.