Home / 3,913.86-5,868.96-2,270.91

Finding the Fourth Proportional to 3,913.86, 5,868.96 and 2,270.91

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Solution

The fourth proportional to 3,913.86, 5,868.96 and 2,270.91 is: 3,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.86 : 5,868.96 = 2,270.91 : x
  2. Step 2: Convert to fraction form
    3,913.86/5,868.96 = 2,270.91/x
  3. Step 3: Cross multiply
    3,913.86x = 5,868.96 × 2,270.91
  4. Step 4: Simplify right side
    3,913.86x = 13,327,879.95
  5. Step 5: Solve for x
    x = 13,327,879.95/3,913.86
  6. Step 6: Final answer
    x = 3,405.30

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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.