Home / 2,770.61-3,823.76-1,575.86

Finding the Fourth Proportional to 2,770.61, 3,823.76 and 1,575.86

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Solution

The fourth proportional to 2,770.61, 3,823.76 and 1,575.86 is: 2,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.61 : 3,823.76 = 1,575.86 : x
  2. Step 2: Convert to fraction form
    2,770.61/3,823.76 = 1,575.86/x
  3. Step 3: Cross multiply
    2,770.61x = 3,823.76 × 1,575.86
  4. Step 4: Simplify right side
    2,770.61x = 6,025,702.55
  5. Step 5: Solve for x
    x = 6,025,702.55/2,770.61
  6. Step 6: Final answer
    x = 2,174.86

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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.