Home / 3,618.81-4,993.47-2,125.85

Finding the Fourth Proportional to 3,618.81, 4,993.47 and 2,125.85

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Solution

The fourth proportional to 3,618.81, 4,993.47 and 2,125.85 is: 2,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.81 : 4,993.47 = 2,125.85 : x
  2. Step 2: Convert to fraction form
    3,618.81/4,993.47 = 2,125.85/x
  3. Step 3: Cross multiply
    3,618.81x = 4,993.47 × 2,125.85
  4. Step 4: Simplify right side
    3,618.81x = 10,615,343.23
  5. Step 5: Solve for x
    x = 10,615,343.23/3,618.81
  6. Step 6: Final answer
    x = 2,933.38

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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.