Home / 4,945.37-6,823.53-2,820.30

Finding the Fourth Proportional to 4,945.37, 6,823.53 and 2,820.30

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Solution

The fourth proportional to 4,945.37, 6,823.53 and 2,820.30 is: 3,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.37 : 6,823.53 = 2,820.30 : x
  2. Step 2: Convert to fraction form
    4,945.37/6,823.53 = 2,820.30/x
  3. Step 3: Cross multiply
    4,945.37x = 6,823.53 × 2,820.30
  4. Step 4: Simplify right side
    4,945.37x = 19,244,401.66
  5. Step 5: Solve for x
    x = 19,244,401.66/4,945.37
  6. Step 6: Final answer
    x = 3,891.40

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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.