Home / 2,507.20-3,453.90-2,108.87

Finding the Fourth Proportional to 2,507.20, 3,453.90 and 2,108.87

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Solution

The fourth proportional to 2,507.20, 3,453.90 and 2,108.87 is: 2,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.20 : 3,453.90 = 2,108.87 : x
  2. Step 2: Convert to fraction form
    2,507.20/3,453.90 = 2,108.87/x
  3. Step 3: Cross multiply
    2,507.20x = 3,453.90 × 2,108.87
  4. Step 4: Simplify right side
    2,507.20x = 7,283,843.27
  5. Step 5: Solve for x
    x = 7,283,843.27/2,507.20
  6. Step 6: Final answer
    x = 2,905.17

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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.