Home / 2,257.13-3,115.11-1,325.63

Finding the Fourth Proportional to 2,257.13, 3,115.11 and 1,325.63

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Solution

The fourth proportional to 2,257.13, 3,115.11 and 1,325.63 is: 1,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.13 : 3,115.11 = 1,325.63 : x
  2. Step 2: Convert to fraction form
    2,257.13/3,115.11 = 1,325.63/x
  3. Step 3: Cross multiply
    2,257.13x = 3,115.11 × 1,325.63
  4. Step 4: Simplify right side
    2,257.13x = 4,129,467.69
  5. Step 5: Solve for x
    x = 4,129,467.69/2,257.13
  6. Step 6: Final answer
    x = 1,829.53

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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.