Home / 1,541.21-2,309.39-1,393.79

Finding the Fourth Proportional to 1,541.21, 2,309.39 and 1,393.79

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Solution

The fourth proportional to 1,541.21, 2,309.39 and 1,393.79 is: 2,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.21 : 2,309.39 = 1,393.79 : x
  2. Step 2: Convert to fraction form
    1,541.21/2,309.39 = 1,393.79/x
  3. Step 3: Cross multiply
    1,541.21x = 2,309.39 × 1,393.79
  4. Step 4: Simplify right side
    1,541.21x = 3,218,797.72
  5. Step 5: Solve for x
    x = 3,218,797.72/1,541.21
  6. Step 6: Final answer
    x = 2,088.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.