Home / 3,270.85-4,513.76-1,778.77

Finding the Fourth Proportional to 3,270.85, 4,513.76 and 1,778.77

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Solution

The fourth proportional to 3,270.85, 4,513.76 and 1,778.77 is: 2,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.85 : 4,513.76 = 1,778.77 : x
  2. Step 2: Convert to fraction form
    3,270.85/4,513.76 = 1,778.77/x
  3. Step 3: Cross multiply
    3,270.85x = 4,513.76 × 1,778.77
  4. Step 4: Simplify right side
    3,270.85x = 8,028,931.98
  5. Step 5: Solve for x
    x = 8,028,931.98/3,270.85
  6. Step 6: Final answer
    x = 2,454.70

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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.