Home / 3,377.84-4,663.11-2,120.72

Finding the Fourth Proportional to 3,377.84, 4,663.11 and 2,120.72

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Solution

The fourth proportional to 3,377.84, 4,663.11 and 2,120.72 is: 2,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.84 : 4,663.11 = 2,120.72 : x
  2. Step 2: Convert to fraction form
    3,377.84/4,663.11 = 2,120.72/x
  3. Step 3: Cross multiply
    3,377.84x = 4,663.11 × 2,120.72
  4. Step 4: Simplify right side
    3,377.84x = 9,889,127.32
  5. Step 5: Solve for x
    x = 9,889,127.32/3,377.84
  6. Step 6: Final answer
    x = 2,927.65

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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.