Home / 2,490.12-3,438.20-1,606.44

Finding the Fourth Proportional to 2,490.12, 3,438.20 and 1,606.44

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Solution

The fourth proportional to 2,490.12, 3,438.20 and 1,606.44 is: 2,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.12 : 3,438.20 = 1,606.44 : x
  2. Step 2: Convert to fraction form
    2,490.12/3,438.20 = 1,606.44/x
  3. Step 3: Cross multiply
    2,490.12x = 3,438.20 × 1,606.44
  4. Step 4: Simplify right side
    2,490.12x = 5,523,262.01
  5. Step 5: Solve for x
    x = 5,523,262.01/2,490.12
  6. Step 6: Final answer
    x = 2,218.07

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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.