Home / 4,279.29-6,419.07-1,907.61

Finding the Fourth Proportional to 4,279.29, 6,419.07 and 1,907.61

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Solution

The fourth proportional to 4,279.29, 6,419.07 and 1,907.61 is: 2,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.29 : 6,419.07 = 1,907.61 : x
  2. Step 2: Convert to fraction form
    4,279.29/6,419.07 = 1,907.61/x
  3. Step 3: Cross multiply
    4,279.29x = 6,419.07 × 1,907.61
  4. Step 4: Simplify right side
    4,279.29x = 12,245,082.12
  5. Step 5: Solve for x
    x = 12,245,082.12/4,279.29
  6. Step 6: Final answer
    x = 2,861.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.