Home / 3,275.85-4,520.78-1,783.68

Finding the Fourth Proportional to 3,275.85, 4,520.78 and 1,783.68

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Solution

The fourth proportional to 3,275.85, 4,520.78 and 1,783.68 is: 2,461.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.85 : 4,520.78 = 1,783.68 : x
  2. Step 2: Convert to fraction form
    3,275.85/4,520.78 = 1,783.68/x
  3. Step 3: Cross multiply
    3,275.85x = 4,520.78 × 1,783.68
  4. Step 4: Simplify right side
    3,275.85x = 8,063,605.69
  5. Step 5: Solve for x
    x = 8,063,605.69/3,275.85
  6. Step 6: Final answer
    x = 2,461.53

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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.