Home / 2,519.19-3,775.13-1,421.22

Finding the Fourth Proportional to 2,519.19, 3,775.13 and 1,421.22

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Solution

The fourth proportional to 2,519.19, 3,775.13 and 1,421.22 is: 2,129.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.19 : 3,775.13 = 1,421.22 : x
  2. Step 2: Convert to fraction form
    2,519.19/3,775.13 = 1,421.22/x
  3. Step 3: Cross multiply
    2,519.19x = 3,775.13 × 1,421.22
  4. Step 4: Simplify right side
    2,519.19x = 5,365,283.15
  5. Step 5: Solve for x
    x = 5,365,283.15/2,519.19
  6. Step 6: Final answer
    x = 2,129.77

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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.