Home / 2,384.28-3,289.55-1,440.43

Finding the Fourth Proportional to 2,384.28, 3,289.55 and 1,440.43

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Solution

The fourth proportional to 2,384.28, 3,289.55 and 1,440.43 is: 1,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.28 : 3,289.55 = 1,440.43 : x
  2. Step 2: Convert to fraction form
    2,384.28/3,289.55 = 1,440.43/x
  3. Step 3: Cross multiply
    2,384.28x = 3,289.55 × 1,440.43
  4. Step 4: Simplify right side
    2,384.28x = 4,738,351.08
  5. Step 5: Solve for x
    x = 4,738,351.08/2,384.28
  6. Step 6: Final answer
    x = 1,987.33

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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.