Home / 3,400.81-5,101.25-1,209.63

Finding the Fourth Proportional to 3,400.81, 5,101.25 and 1,209.63

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Solution

The fourth proportional to 3,400.81, 5,101.25 and 1,209.63 is: 1,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.81 : 5,101.25 = 1,209.63 : x
  2. Step 2: Convert to fraction form
    3,400.81/5,101.25 = 1,209.63/x
  3. Step 3: Cross multiply
    3,400.81x = 5,101.25 × 1,209.63
  4. Step 4: Simplify right side
    3,400.81x = 6,170,625.04
  5. Step 5: Solve for x
    x = 6,170,625.04/3,400.81
  6. Step 6: Final answer
    x = 1,814.46

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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.