Home / 1,781.79-2,453.67-1,743.45

Finding the Fourth Proportional to 1,781.79, 2,453.67 and 1,743.45

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Solution

The fourth proportional to 1,781.79, 2,453.67 and 1,743.45 is: 2,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.79 : 2,453.67 = 1,743.45 : x
  2. Step 2: Convert to fraction form
    1,781.79/2,453.67 = 1,743.45/x
  3. Step 3: Cross multiply
    1,781.79x = 2,453.67 × 1,743.45
  4. Step 4: Simplify right side
    1,781.79x = 4,277,850.96
  5. Step 5: Solve for x
    x = 4,277,850.96/1,781.79
  6. Step 6: Final answer
    x = 2,400.87

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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.