Home / 2,570.58-3,850.49-2,130.79

Finding the Fourth Proportional to 2,570.58, 3,850.49 and 2,130.79

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Solution

The fourth proportional to 2,570.58, 3,850.49 and 2,130.79 is: 3,191.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.58 : 3,850.49 = 2,130.79 : x
  2. Step 2: Convert to fraction form
    2,570.58/3,850.49 = 2,130.79/x
  3. Step 3: Cross multiply
    2,570.58x = 3,850.49 × 2,130.79
  4. Step 4: Simplify right side
    2,570.58x = 8,204,568.40
  5. Step 5: Solve for x
    x = 8,204,568.40/2,570.58
  6. Step 6: Final answer
    x = 3,191.72

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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.