Home / 3,177.22-4,384.62-1,779.97

Finding the Fourth Proportional to 3,177.22, 4,384.62 and 1,779.97

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Solution

The fourth proportional to 3,177.22, 4,384.62 and 1,779.97 is: 2,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.22 : 4,384.62 = 1,779.97 : x
  2. Step 2: Convert to fraction form
    3,177.22/4,384.62 = 1,779.97/x
  3. Step 3: Cross multiply
    3,177.22x = 4,384.62 × 1,779.97
  4. Step 4: Simplify right side
    3,177.22x = 7,804,483.16
  5. Step 5: Solve for x
    x = 7,804,483.16/3,177.22
  6. Step 6: Final answer
    x = 2,456.39

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1.5x scale

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.