Home / 2,190.67-3,022.47-1,351.51

Finding the Fourth Proportional to 2,190.67, 3,022.47 and 1,351.51

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Solution

The fourth proportional to 2,190.67, 3,022.47 and 1,351.51 is: 1,864.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.67 : 3,022.47 = 1,351.51 : x
  2. Step 2: Convert to fraction form
    2,190.67/3,022.47 = 1,351.51/x
  3. Step 3: Cross multiply
    2,190.67x = 3,022.47 × 1,351.51
  4. Step 4: Simplify right side
    2,190.67x = 4,084,898.43
  5. Step 5: Solve for x
    x = 4,084,898.43/2,190.67
  6. Step 6: Final answer
    x = 1,864.68

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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.