Home / 4,945.23-6,824.12-2,820.87

Finding the Fourth Proportional to 4,945.23, 6,824.12 and 2,820.87

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Solution

The fourth proportional to 4,945.23, 6,824.12 and 2,820.87 is: 3,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.23 : 6,824.12 = 2,820.87 : x
  2. Step 2: Convert to fraction form
    4,945.23/6,824.12 = 2,820.87/x
  3. Step 3: Cross multiply
    4,945.23x = 6,824.12 × 2,820.87
  4. Step 4: Simplify right side
    4,945.23x = 19,249,941.28
  5. Step 5: Solve for x
    x = 19,249,941.28/4,945.23
  6. Step 6: Final answer
    x = 3,892.63

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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.