Home / 2,383.93-3,289.28-1,439.87

Finding the Fourth Proportional to 2,383.93, 3,289.28 and 1,439.87

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Solution

The fourth proportional to 2,383.93, 3,289.28 and 1,439.87 is: 1,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.93 : 3,289.28 = 1,439.87 : x
  2. Step 2: Convert to fraction form
    2,383.93/3,289.28 = 1,439.87/x
  3. Step 3: Cross multiply
    2,383.93x = 3,289.28 × 1,439.87
  4. Step 4: Simplify right side
    2,383.93x = 4,736,135.59
  5. Step 5: Solve for x
    x = 4,736,135.59/2,383.93
  6. Step 6: Final answer
    x = 1,986.70

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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.