Home / 4,095.25-6,142.72-1,321.71

Finding the Fourth Proportional to 4,095.25, 6,142.72 and 1,321.71

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Solution

The fourth proportional to 4,095.25, 6,142.72 and 1,321.71 is: 1,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,095.25 : 6,142.72 = 1,321.71 : x
  2. Step 2: Convert to fraction form
    4,095.25/6,142.72 = 1,321.71/x
  3. Step 3: Cross multiply
    4,095.25x = 6,142.72 × 1,321.71
  4. Step 4: Simplify right side
    4,095.25x = 8,118,894.45
  5. Step 5: Solve for x
    x = 8,118,894.45/4,095.25
  6. Step 6: Final answer
    x = 1,982.51

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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.