Home / 3,177.19-4,384.53-2,221.49

Finding the Fourth Proportional to 3,177.19, 4,384.53 and 2,221.49

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Solution

The fourth proportional to 3,177.19, 4,384.53 and 2,221.49 is: 3,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.19 : 4,384.53 = 2,221.49 : x
  2. Step 2: Convert to fraction form
    3,177.19/4,384.53 = 2,221.49/x
  3. Step 3: Cross multiply
    3,177.19x = 4,384.53 × 2,221.49
  4. Step 4: Simplify right side
    3,177.19x = 9,740,200.51
  5. Step 5: Solve for x
    x = 9,740,200.51/3,177.19
  6. Step 6: Final answer
    x = 3,065.66

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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.