Home / 3,177.88-4,765.95-1,328.69

Finding the Fourth Proportional to 3,177.88, 4,765.95 and 1,328.69

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Solution

The fourth proportional to 3,177.88, 4,765.95 and 1,328.69 is: 1,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.88 : 4,765.95 = 1,328.69 : x
  2. Step 2: Convert to fraction form
    3,177.88/4,765.95 = 1,328.69/x
  3. Step 3: Cross multiply
    3,177.88x = 4,765.95 × 1,328.69
  4. Step 4: Simplify right side
    3,177.88x = 6,332,482.02
  5. Step 5: Solve for x
    x = 6,332,482.02/3,177.88
  6. Step 6: Final answer
    x = 1,992.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.