Home / 3,101.10-4,279.08-1,774.89

Finding the Fourth Proportional to 3,101.10, 4,279.08 and 1,774.89

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Solution

The fourth proportional to 3,101.10, 4,279.08 and 1,774.89 is: 2,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.10 : 4,279.08 = 1,774.89 : x
  2. Step 2: Convert to fraction form
    3,101.10/4,279.08 = 1,774.89/x
  3. Step 3: Cross multiply
    3,101.10x = 4,279.08 × 1,774.89
  4. Step 4: Simplify right side
    3,101.10x = 7,594,896.30
  5. Step 5: Solve for x
    x = 7,594,896.30/3,101.10
  6. Step 6: Final answer
    x = 2,449.10

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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.