Home / 2,384.15-3,289.02-1,388.84

Finding the Fourth Proportional to 2,384.15, 3,289.02 and 1,388.84

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Solution

The fourth proportional to 2,384.15, 3,289.02 and 1,388.84 is: 1,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.15 : 3,289.02 = 1,388.84 : x
  2. Step 2: Convert to fraction form
    2,384.15/3,289.02 = 1,388.84/x
  3. Step 3: Cross multiply
    2,384.15x = 3,289.02 × 1,388.84
  4. Step 4: Simplify right side
    2,384.15x = 4,567,906.09
  5. Step 5: Solve for x
    x = 4,567,906.09/2,384.15
  6. Step 6: Final answer
    x = 1,915.95

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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.