Home / 3,177.09-4,384.39-1,779.84

Finding the Fourth Proportional to 3,177.09, 4,384.39 and 1,779.84

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Solution

The fourth proportional to 3,177.09, 4,384.39 and 1,779.84 is: 2,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.09 : 4,384.39 = 1,779.84 : x
  2. Step 2: Convert to fraction form
    3,177.09/4,384.39 = 1,779.84/x
  3. Step 3: Cross multiply
    3,177.09x = 4,384.39 × 1,779.84
  4. Step 4: Simplify right side
    3,177.09x = 7,803,531.36
  5. Step 5: Solve for x
    x = 7,803,531.36/3,177.09
  6. Step 6: Final answer
    x = 2,456.19

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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.