Home / 3,377.30-4,663.58-2,120.51

Finding the Fourth Proportional to 3,377.30, 4,663.58 and 2,120.51

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Solution

The fourth proportional to 3,377.30, 4,663.58 and 2,120.51 is: 2,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,377.30 : 4,663.58 = 2,120.51 : x
  2. Step 2: Convert to fraction form
    3,377.30/4,663.58 = 2,120.51/x
  3. Step 3: Cross multiply
    3,377.30x = 4,663.58 × 2,120.51
  4. Step 4: Simplify right side
    3,377.30x = 9,889,169.08
  5. Step 5: Solve for x
    x = 9,889,169.08/3,377.30
  6. Step 6: Final answer
    x = 2,928.13

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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.