Home / 2,268.65-3,131.08-1,384.97

Finding the Fourth Proportional to 2,268.65, 3,131.08 and 1,384.97

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Solution

The fourth proportional to 2,268.65, 3,131.08 and 1,384.97 is: 1,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.65 : 3,131.08 = 1,384.97 : x
  2. Step 2: Convert to fraction form
    2,268.65/3,131.08 = 1,384.97/x
  3. Step 3: Cross multiply
    2,268.65x = 3,131.08 × 1,384.97
  4. Step 4: Simplify right side
    2,268.65x = 4,336,445.77
  5. Step 5: Solve for x
    x = 4,336,445.77/2,268.65
  6. Step 6: Final answer
    x = 1,911.47

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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.