Home / 4,391.64-6,588.27-1,390.43

Finding the Fourth Proportional to 4,391.64, 6,588.27 and 1,390.43

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Solution

The fourth proportional to 4,391.64, 6,588.27 and 1,390.43 is: 2,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.64 : 6,588.27 = 1,390.43 : x
  2. Step 2: Convert to fraction form
    4,391.64/6,588.27 = 1,390.43/x
  3. Step 3: Cross multiply
    4,391.64x = 6,588.27 × 1,390.43
  4. Step 4: Simplify right side
    4,391.64x = 9,160,544.73
  5. Step 5: Solve for x
    x = 9,160,544.73/4,391.64
  6. Step 6: Final answer
    x = 2,085.91

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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.