Home / 2,455.90-3,389.07-1,336.81

Finding the Fourth Proportional to 2,455.90, 3,389.07 and 1,336.81

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Solution

The fourth proportional to 2,455.90, 3,389.07 and 1,336.81 is: 1,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.90 : 3,389.07 = 1,336.81 : x
  2. Step 2: Convert to fraction form
    2,455.90/3,389.07 = 1,336.81/x
  3. Step 3: Cross multiply
    2,455.90x = 3,389.07 × 1,336.81
  4. Step 4: Simplify right side
    2,455.90x = 4,530,542.67
  5. Step 5: Solve for x
    x = 4,530,542.67/2,455.90
  6. Step 6: Final answer
    x = 1,844.76

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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.