Home / 3,177.15-4,384.46-1,779.87

Finding the Fourth Proportional to 3,177.15, 4,384.46 and 1,779.87

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Solution

The fourth proportional to 3,177.15, 4,384.46 and 1,779.87 is: 2,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.15 : 4,384.46 = 1,779.87 : x
  2. Step 2: Convert to fraction form
    3,177.15/4,384.46 = 1,779.87/x
  3. Step 3: Cross multiply
    3,177.15x = 4,384.46 × 1,779.87
  4. Step 4: Simplify right side
    3,177.15x = 7,803,759.92
  5. Step 5: Solve for x
    x = 7,803,759.92/3,177.15
  6. Step 6: Final answer
    x = 2,456.21

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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.