Home / 6,921.39-9,551.58-3,777.63

Finding the Fourth Proportional to 6,921.39, 9,551.58 and 3,777.63

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Solution

The fourth proportional to 6,921.39, 9,551.58 and 3,777.63 is: 5,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.39 : 9,551.58 = 3,777.63 : x
  2. Step 2: Convert to fraction form
    6,921.39/9,551.58 = 3,777.63/x
  3. Step 3: Cross multiply
    6,921.39x = 9,551.58 × 3,777.63
  4. Step 4: Simplify right side
    6,921.39x = 36,082,335.16
  5. Step 5: Solve for x
    x = 36,082,335.16/6,921.39
  6. Step 6: Final answer
    x = 5,213.16

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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.