Home / 3,890.16-5,835.24-1,292.76

Finding the Fourth Proportional to 3,890.16, 5,835.24 and 1,292.76

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Solution

The fourth proportional to 3,890.16, 5,835.24 and 1,292.76 is: 1,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.16 : 5,835.24 = 1,292.76 : x
  2. Step 2: Convert to fraction form
    3,890.16/5,835.24 = 1,292.76/x
  3. Step 3: Cross multiply
    3,890.16x = 5,835.24 × 1,292.76
  4. Step 4: Simplify right side
    3,890.16x = 7,543,564.86
  5. Step 5: Solve for x
    x = 7,543,564.86/3,890.16
  6. Step 6: Final answer
    x = 1,939.14

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.