Home / 2,077.70-2,867.22-1,238.41

Finding the Fourth Proportional to 2,077.70, 2,867.22 and 1,238.41

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Solution

The fourth proportional to 2,077.70, 2,867.22 and 1,238.41 is: 1,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.70 : 2,867.22 = 1,238.41 : x
  2. Step 2: Convert to fraction form
    2,077.70/2,867.22 = 1,238.41/x
  3. Step 3: Cross multiply
    2,077.70x = 2,867.22 × 1,238.41
  4. Step 4: Simplify right side
    2,077.70x = 3,550,809.05
  5. Step 5: Solve for x
    x = 3,550,809.05/2,077.70
  6. Step 6: Final answer
    x = 1,709.01

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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.