Home / 2,507.07-3,755.70-1,638.75

Finding the Fourth Proportional to 2,507.07, 3,755.70 and 1,638.75

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Solution

The fourth proportional to 2,507.07, 3,755.70 and 1,638.75 is: 2,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.07 : 3,755.70 = 1,638.75 : x
  2. Step 2: Convert to fraction form
    2,507.07/3,755.70 = 1,638.75/x
  3. Step 3: Cross multiply
    2,507.07x = 3,755.70 × 1,638.75
  4. Step 4: Simplify right side
    2,507.07x = 6,154,653.38
  5. Step 5: Solve for x
    x = 6,154,653.38/2,507.07
  6. Step 6: Final answer
    x = 2,454.92

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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.