Home / 2,518.24-3,777.05-669.49

Finding the Fourth Proportional to 2,518.24, 3,777.05 and 669.49

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Solution

The fourth proportional to 2,518.24, 3,777.05 and 669.49 is: 1,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.24 : 3,777.05 = 669.49 : x
  2. Step 2: Convert to fraction form
    2,518.24/3,777.05 = 669.49/x
  3. Step 3: Cross multiply
    2,518.24x = 3,777.05 × 669.49
  4. Step 4: Simplify right side
    2,518.24x = 2,528,679.99
  5. Step 5: Solve for x
    x = 2,528,679.99/2,518.24
  6. Step 6: Final answer
    x = 1,004.15

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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.