Home / 7,642.38-10,546.68-4,285.10

Finding the Fourth Proportional to 7,642.38, 10,546.68 and 4,285.10

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Solution

The fourth proportional to 7,642.38, 10,546.68 and 4,285.10 is: 5,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.38 : 10,546.68 = 4,285.10 : x
  2. Step 2: Convert to fraction form
    7,642.38/10,546.68 = 4,285.10/x
  3. Step 3: Cross multiply
    7,642.38x = 10,546.68 × 4,285.10
  4. Step 4: Simplify right side
    7,642.38x = 45,193,578.47
  5. Step 5: Solve for x
    x = 45,193,578.47/7,642.38
  6. Step 6: Final answer
    x = 5,913.55

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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.