Home / 2,268.45-3,130.25-1,384.07

Finding the Fourth Proportional to 2,268.45, 3,130.25 and 1,384.07

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Solution

The fourth proportional to 2,268.45, 3,130.25 and 1,384.07 is: 1,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.45 : 3,130.25 = 1,384.07 : x
  2. Step 2: Convert to fraction form
    2,268.45/3,130.25 = 1,384.07/x
  3. Step 3: Cross multiply
    2,268.45x = 3,130.25 × 1,384.07
  4. Step 4: Simplify right side
    2,268.45x = 4,332,462.55
  5. Step 5: Solve for x
    x = 4,332,462.55/2,268.45
  6. Step 6: Final answer
    x = 1,909.88

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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.