Home / 2,538.89-3,490.20-2,183.51

Finding the Fourth Proportional to 2,538.89, 3,490.20 and 2,183.51

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Solution

The fourth proportional to 2,538.89, 3,490.20 and 2,183.51 is: 3,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.89 : 3,490.20 = 2,183.51 : x
  2. Step 2: Convert to fraction form
    2,538.89/3,490.20 = 2,183.51/x
  3. Step 3: Cross multiply
    2,538.89x = 3,490.20 × 2,183.51
  4. Step 4: Simplify right side
    2,538.89x = 7,620,886.60
  5. Step 5: Solve for x
    x = 7,620,886.60/2,538.89
  6. Step 6: Final answer
    x = 3,001.66

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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.