Home / 4,270.74-6,406.12-1,931.86

Finding the Fourth Proportional to 4,270.74, 6,406.12 and 1,931.86

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Solution

The fourth proportional to 4,270.74, 6,406.12 and 1,931.86 is: 2,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.74 : 6,406.12 = 1,931.86 : x
  2. Step 2: Convert to fraction form
    4,270.74/6,406.12 = 1,931.86/x
  3. Step 3: Cross multiply
    4,270.74x = 6,406.12 × 1,931.86
  4. Step 4: Simplify right side
    4,270.74x = 12,375,726.98
  5. Step 5: Solve for x
    x = 12,375,726.98/4,270.74
  6. Step 6: Final answer
    x = 2,897.79

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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.