Home / 2,268.44-3,130.78-1,384.75

Finding the Fourth Proportional to 2,268.44, 3,130.78 and 1,384.75

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Solution

The fourth proportional to 2,268.44, 3,130.78 and 1,384.75 is: 1,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.44 : 3,130.78 = 1,384.75 : x
  2. Step 2: Convert to fraction form
    2,268.44/3,130.78 = 1,384.75/x
  3. Step 3: Cross multiply
    2,268.44x = 3,130.78 × 1,384.75
  4. Step 4: Simplify right side
    2,268.44x = 4,335,347.61
  5. Step 5: Solve for x
    x = 4,335,347.61/2,268.44
  6. Step 6: Final answer
    x = 1,911.16

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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.