Home / 3,113.81-4,297.55-2,406.68

Finding the Fourth Proportional to 3,113.81, 4,297.55 and 2,406.68

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Solution

The fourth proportional to 3,113.81, 4,297.55 and 2,406.68 is: 3,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.81 : 4,297.55 = 2,406.68 : x
  2. Step 2: Convert to fraction form
    3,113.81/4,297.55 = 2,406.68/x
  3. Step 3: Cross multiply
    3,113.81x = 4,297.55 × 2,406.68
  4. Step 4: Simplify right side
    3,113.81x = 10,342,794.11
  5. Step 5: Solve for x
    x = 10,342,794.11/3,113.81
  6. Step 6: Final answer
    x = 3,321.59

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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.