Home / 3,156.13-4,355.48-1,739.86

Finding the Fourth Proportional to 3,156.13, 4,355.48 and 1,739.86

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Solution

The fourth proportional to 3,156.13, 4,355.48 and 1,739.86 is: 2,401.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.13 : 4,355.48 = 1,739.86 : x
  2. Step 2: Convert to fraction form
    3,156.13/4,355.48 = 1,739.86/x
  3. Step 3: Cross multiply
    3,156.13x = 4,355.48 × 1,739.86
  4. Step 4: Simplify right side
    3,156.13x = 7,577,933.61
  5. Step 5: Solve for x
    x = 7,577,933.61/3,156.13
  6. Step 6: Final answer
    x = 2,401.02

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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.