Home / 3,177.55-4,384.29-1,918.27

Finding the Fourth Proportional to 3,177.55, 4,384.29 and 1,918.27

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Solution

The fourth proportional to 3,177.55, 4,384.29 and 1,918.27 is: 2,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.55 : 4,384.29 = 1,918.27 : x
  2. Step 2: Convert to fraction form
    3,177.55/4,384.29 = 1,918.27/x
  3. Step 3: Cross multiply
    3,177.55x = 4,384.29 × 1,918.27
  4. Step 4: Simplify right side
    3,177.55x = 8,410,251.98
  5. Step 5: Solve for x
    x = 8,410,251.98/3,177.55
  6. Step 6: Final answer
    x = 2,646.77

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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.