Home / 2,518.36-3,777.58-669.66

Finding the Fourth Proportional to 2,518.36, 3,777.58 and 669.66

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Solution

The fourth proportional to 2,518.36, 3,777.58 and 669.66 is: 1,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.36 : 3,777.58 = 669.66 : x
  2. Step 2: Convert to fraction form
    2,518.36/3,777.58 = 669.66/x
  3. Step 3: Cross multiply
    2,518.36x = 3,777.58 × 669.66
  4. Step 4: Simplify right side
    2,518.36x = 2,529,694.22
  5. Step 5: Solve for x
    x = 2,529,694.22/2,518.36
  6. Step 6: Final answer
    x = 1,004.50

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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.