Home / 3,101.98-4,279.68-1,774.74

Finding the Fourth Proportional to 3,101.98, 4,279.68 and 1,774.74

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Solution

The fourth proportional to 3,101.98, 4,279.68 and 1,774.74 is: 2,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.98 : 4,279.68 = 1,774.74 : x
  2. Step 2: Convert to fraction form
    3,101.98/4,279.68 = 1,774.74/x
  3. Step 3: Cross multiply
    3,101.98x = 4,279.68 × 1,774.74
  4. Step 4: Simplify right side
    3,101.98x = 7,595,319.28
  5. Step 5: Solve for x
    x = 7,595,319.28/3,101.98
  6. Step 6: Final answer
    x = 2,448.54

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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.