Home / 3,276.84-4,915.80-1,330.38

Finding the Fourth Proportional to 3,276.84, 4,915.80 and 1,330.38

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Solution

The fourth proportional to 3,276.84, 4,915.80 and 1,330.38 is: 1,995.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.84 : 4,915.80 = 1,330.38 : x
  2. Step 2: Convert to fraction form
    3,276.84/4,915.80 = 1,330.38/x
  3. Step 3: Cross multiply
    3,276.84x = 4,915.80 × 1,330.38
  4. Step 4: Simplify right side
    3,276.84x = 6,539,882.00
  5. Step 5: Solve for x
    x = 6,539,882.00/3,276.84
  6. Step 6: Final answer
    x = 1,995.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.