Home / 1,945.08-2,685.42-1,237.32

Finding the Fourth Proportional to 1,945.08, 2,685.42 and 1,237.32

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Solution

The fourth proportional to 1,945.08, 2,685.42 and 1,237.32 is: 1,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.08 : 2,685.42 = 1,237.32 : x
  2. Step 2: Convert to fraction form
    1,945.08/2,685.42 = 1,237.32/x
  3. Step 3: Cross multiply
    1,945.08x = 2,685.42 × 1,237.32
  4. Step 4: Simplify right side
    1,945.08x = 3,322,723.87
  5. Step 5: Solve for x
    x = 3,322,723.87/1,945.08
  6. Step 6: Final answer
    x = 1,708.27

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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.