Home / 2,500.45-3,450.89-1,869.86

Finding the Fourth Proportional to 2,500.45, 3,450.89 and 1,869.86

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Solution

The fourth proportional to 2,500.45, 3,450.89 and 1,869.86 is: 2,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.45 : 3,450.89 = 1,869.86 : x
  2. Step 2: Convert to fraction form
    2,500.45/3,450.89 = 1,869.86/x
  3. Step 3: Cross multiply
    2,500.45x = 3,450.89 × 1,869.86
  4. Step 4: Simplify right side
    2,500.45x = 6,452,694.48
  5. Step 5: Solve for x
    x = 6,452,694.48/2,500.45
  6. Step 6: Final answer
    x = 2,580.62

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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.