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Finding the Fourth Proportional to 3,480.59, 4,776.58 and 3,455.99

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Solution

The fourth proportional to 3,480.59, 4,776.58 and 3,455.99 is: 4,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.59 : 4,776.58 = 3,455.99 : x
  2. Step 2: Convert to fraction form
    3,480.59/4,776.58 = 3,455.99/x
  3. Step 3: Cross multiply
    3,480.59x = 4,776.58 × 3,455.99
  4. Step 4: Simplify right side
    3,480.59x = 16,507,788.83
  5. Step 5: Solve for x
    x = 16,507,788.83/3,480.59
  6. Step 6: Final answer
    x = 4,742.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.