Home / 6,386.19-8,812.85-3,591.69

Finding the Fourth Proportional to 6,386.19, 8,812.85 and 3,591.69

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Solution

The fourth proportional to 6,386.19, 8,812.85 and 3,591.69 is: 4,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.19 : 8,812.85 = 3,591.69 : x
  2. Step 2: Convert to fraction form
    6,386.19/8,812.85 = 3,591.69/x
  3. Step 3: Cross multiply
    6,386.19x = 8,812.85 × 3,591.69
  4. Step 4: Simplify right side
    6,386.19x = 31,653,007.26
  5. Step 5: Solve for x
    x = 31,653,007.26/6,386.19
  6. Step 6: Final answer
    x = 4,956.48

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.