Home / 2,501.08-3,451.38-1,438.80

Finding the Fourth Proportional to 2,501.08, 3,451.38 and 1,438.80

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Solution

The fourth proportional to 2,501.08, 3,451.38 and 1,438.80 is: 1,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,501.08 : 3,451.38 = 1,438.80 : x
  2. Step 2: Convert to fraction form
    2,501.08/3,451.38 = 1,438.80/x
  3. Step 3: Cross multiply
    2,501.08x = 3,451.38 × 1,438.80
  4. Step 4: Simplify right side
    2,501.08x = 4,965,845.54
  5. Step 5: Solve for x
    x = 4,965,845.54/2,501.08
  6. Step 6: Final answer
    x = 1,985.48

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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.