Home / 2,137.79-2,944.25-1,984.70

Finding the Fourth Proportional to 2,137.79, 2,944.25 and 1,984.70

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Solution

The fourth proportional to 2,137.79, 2,944.25 and 1,984.70 is: 2,733.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.79 : 2,944.25 = 1,984.70 : x
  2. Step 2: Convert to fraction form
    2,137.79/2,944.25 = 1,984.70/x
  3. Step 3: Cross multiply
    2,137.79x = 2,944.25 × 1,984.70
  4. Step 4: Simplify right side
    2,137.79x = 5,843,457.85
  5. Step 5: Solve for x
    x = 5,843,457.85/2,137.79
  6. Step 6: Final answer
    x = 2,733.41

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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.