Home / 4,943.32-6,821.49-2,818.56

Finding the Fourth Proportional to 4,943.32, 6,821.49 and 2,818.56

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Solution

The fourth proportional to 4,943.32, 6,821.49 and 2,818.56 is: 3,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.32 : 6,821.49 = 2,818.56 : x
  2. Step 2: Convert to fraction form
    4,943.32/6,821.49 = 2,818.56/x
  3. Step 3: Cross multiply
    4,943.32x = 6,821.49 × 2,818.56
  4. Step 4: Simplify right side
    4,943.32x = 19,226,778.85
  5. Step 5: Solve for x
    x = 19,226,778.85/4,943.32
  6. Step 6: Final answer
    x = 3,889.45

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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.