Home / 2,314.74-3,194.28-2,128.98

Finding the Fourth Proportional to 2,314.74, 3,194.28 and 2,128.98

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Solution

The fourth proportional to 2,314.74, 3,194.28 and 2,128.98 is: 2,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.74 : 3,194.28 = 2,128.98 : x
  2. Step 2: Convert to fraction form
    2,314.74/3,194.28 = 2,128.98/x
  3. Step 3: Cross multiply
    2,314.74x = 3,194.28 × 2,128.98
  4. Step 4: Simplify right side
    2,314.74x = 6,800,558.23
  5. Step 5: Solve for x
    x = 6,800,558.23/2,314.74
  6. Step 6: Final answer
    x = 2,937.94

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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.