Home / 2,935.78-4,053.38-2,179.74

Finding the Fourth Proportional to 2,935.78, 4,053.38 and 2,179.74

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Solution

The fourth proportional to 2,935.78, 4,053.38 and 2,179.74 is: 3,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.78 : 4,053.38 = 2,179.74 : x
  2. Step 2: Convert to fraction form
    2,935.78/4,053.38 = 2,179.74/x
  3. Step 3: Cross multiply
    2,935.78x = 4,053.38 × 2,179.74
  4. Step 4: Simplify right side
    2,935.78x = 8,835,318.82
  5. Step 5: Solve for x
    x = 8,835,318.82/2,935.78
  6. Step 6: Final answer
    x = 3,009.53

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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.