Home / 2,455.87-3,389.06-1,336.78

Finding the Fourth Proportional to 2,455.87, 3,389.06 and 1,336.78

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Solution

The fourth proportional to 2,455.87, 3,389.06 and 1,336.78 is: 1,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.87 : 3,389.06 = 1,336.78 : x
  2. Step 2: Convert to fraction form
    2,455.87/3,389.06 = 1,336.78/x
  3. Step 3: Cross multiply
    2,455.87x = 3,389.06 × 1,336.78
  4. Step 4: Simplify right side
    2,455.87x = 4,530,446.65
  5. Step 5: Solve for x
    x = 4,530,446.65/2,455.87
  6. Step 6: Final answer
    x = 1,844.74

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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.