Home / 2,685.40-3,703.46-1,944.25

Finding the Fourth Proportional to 2,685.40, 3,703.46 and 1,944.25

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Solution

The fourth proportional to 2,685.40, 3,703.46 and 1,944.25 is: 2,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.40 : 3,703.46 = 1,944.25 : x
  2. Step 2: Convert to fraction form
    2,685.40/3,703.46 = 1,944.25/x
  3. Step 3: Cross multiply
    2,685.40x = 3,703.46 × 1,944.25
  4. Step 4: Simplify right side
    2,685.40x = 7,200,433.13
  5. Step 5: Solve for x
    x = 7,200,433.13/2,685.40
  6. Step 6: Final answer
    x = 2,681.33

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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.