Home / 2,384.73-3,289.17-1,389.95

Finding the Fourth Proportional to 2,384.73, 3,289.17 and 1,389.95

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Solution

The fourth proportional to 2,384.73, 3,289.17 and 1,389.95 is: 1,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.73 : 3,289.17 = 1,389.95 : x
  2. Step 2: Convert to fraction form
    2,384.73/3,289.17 = 1,389.95/x
  3. Step 3: Cross multiply
    2,384.73x = 3,289.17 × 1,389.95
  4. Step 4: Simplify right side
    2,384.73x = 4,571,781.84
  5. Step 5: Solve for x
    x = 4,571,781.84/2,384.73
  6. Step 6: Final answer
    x = 1,917.11

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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.