Home / 2,384.12-3,290.28-1,321.99

Finding the Fourth Proportional to 2,384.12, 3,290.28 and 1,321.99

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Solution

The fourth proportional to 2,384.12, 3,290.28 and 1,321.99 is: 1,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.12 : 3,290.28 = 1,321.99 : x
  2. Step 2: Convert to fraction form
    2,384.12/3,290.28 = 1,321.99/x
  3. Step 3: Cross multiply
    2,384.12x = 3,290.28 × 1,321.99
  4. Step 4: Simplify right side
    2,384.12x = 4,349,704.07
  5. Step 5: Solve for x
    x = 4,349,704.07/2,384.12
  6. Step 6: Final answer
    x = 1,824.45

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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.