Home / 6,143.20-9,212.47-1,982.59

Finding the Fourth Proportional to 6,143.20, 9,212.47 and 1,982.59

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Solution

The fourth proportional to 6,143.20, 9,212.47 and 1,982.59 is: 2,973.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.20 : 9,212.47 = 1,982.59 : x
  2. Step 2: Convert to fraction form
    6,143.20/9,212.47 = 1,982.59/x
  3. Step 3: Cross multiply
    6,143.20x = 9,212.47 × 1,982.59
  4. Step 4: Simplify right side
    6,143.20x = 18,264,544.23
  5. Step 5: Solve for x
    x = 18,264,544.23/6,143.20
  6. Step 6: Final answer
    x = 2,973.13

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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.