Home / 4,915.26-6,783.30-2,820.06

Finding the Fourth Proportional to 4,915.26, 6,783.30 and 2,820.06

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Solution

The fourth proportional to 4,915.26, 6,783.30 and 2,820.06 is: 3,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.26 : 6,783.30 = 2,820.06 : x
  2. Step 2: Convert to fraction form
    4,915.26/6,783.30 = 2,820.06/x
  3. Step 3: Cross multiply
    4,915.26x = 6,783.30 × 2,820.06
  4. Step 4: Simplify right side
    4,915.26x = 19,129,313.00
  5. Step 5: Solve for x
    x = 19,129,313.00/4,915.26
  6. Step 6: Final answer
    x = 3,891.82

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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.