Home / 6,386.25-8,813.07-3,591.75

Finding the Fourth Proportional to 6,386.25, 8,813.07 and 3,591.75

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Solution

The fourth proportional to 6,386.25, 8,813.07 and 3,591.75 is: 4,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.25 : 8,813.07 = 3,591.75 : x
  2. Step 2: Convert to fraction form
    6,386.25/8,813.07 = 3,591.75/x
  3. Step 3: Cross multiply
    6,386.25x = 8,813.07 × 3,591.75
  4. Step 4: Simplify right side
    6,386.25x = 31,654,344.17
  5. Step 5: Solve for x
    x = 31,654,344.17/6,386.25
  6. Step 6: Final answer
    x = 4,956.64

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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.