Home / 2,120.39-2,928.94-1,767.47

Finding the Fourth Proportional to 2,120.39, 2,928.94 and 1,767.47

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Solution

The fourth proportional to 2,120.39, 2,928.94 and 1,767.47 is: 2,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.39 : 2,928.94 = 1,767.47 : x
  2. Step 2: Convert to fraction form
    2,120.39/2,928.94 = 1,767.47/x
  3. Step 3: Cross multiply
    2,120.39x = 2,928.94 × 1,767.47
  4. Step 4: Simplify right side
    2,120.39x = 5,176,798.94
  5. Step 5: Solve for x
    x = 5,176,798.94/2,120.39
  6. Step 6: Final answer
    x = 2,441.44

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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.