Home / 2,313.51-3,192.89-1,369.61

Finding the Fourth Proportional to 2,313.51, 3,192.89 and 1,369.61

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Solution

The fourth proportional to 2,313.51, 3,192.89 and 1,369.61 is: 1,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.51 : 3,192.89 = 1,369.61 : x
  2. Step 2: Convert to fraction form
    2,313.51/3,192.89 = 1,369.61/x
  3. Step 3: Cross multiply
    2,313.51x = 3,192.89 × 1,369.61
  4. Step 4: Simplify right side
    2,313.51x = 4,372,991.26
  5. Step 5: Solve for x
    x = 4,372,991.26/2,313.51
  6. Step 6: Final answer
    x = 1,890.20

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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.