Home / 3,156.15-4,355.67-1,739.87

Finding the Fourth Proportional to 3,156.15, 4,355.67 and 1,739.87

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Solution

The fourth proportional to 3,156.15, 4,355.67 and 1,739.87 is: 2,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.15 : 4,355.67 = 1,739.87 : x
  2. Step 2: Convert to fraction form
    3,156.15/4,355.67 = 1,739.87/x
  3. Step 3: Cross multiply
    3,156.15x = 4,355.67 × 1,739.87
  4. Step 4: Simplify right side
    3,156.15x = 7,578,299.56
  5. Step 5: Solve for x
    x = 7,578,299.56/3,156.15
  6. Step 6: Final answer
    x = 2,401.12

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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.