Home / 1,945.13-2,684.27-1,246.55

Finding the Fourth Proportional to 1,945.13, 2,684.27 and 1,246.55

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Solution

The fourth proportional to 1,945.13, 2,684.27 and 1,246.55 is: 1,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.13 : 2,684.27 = 1,246.55 : x
  2. Step 2: Convert to fraction form
    1,945.13/2,684.27 = 1,246.55/x
  3. Step 3: Cross multiply
    1,945.13x = 2,684.27 × 1,246.55
  4. Step 4: Simplify right side
    1,945.13x = 3,346,066.46
  5. Step 5: Solve for x
    x = 3,346,066.46/1,945.13
  6. Step 6: Final answer
    x = 1,720.23

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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.