Home / 4,279.68-6,415.07-2,085.66

Finding the Fourth Proportional to 4,279.68, 6,415.07 and 2,085.66

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Solution

The fourth proportional to 4,279.68, 6,415.07 and 2,085.66 is: 3,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.68 : 6,415.07 = 2,085.66 : x
  2. Step 2: Convert to fraction form
    4,279.68/6,415.07 = 2,085.66/x
  3. Step 3: Cross multiply
    4,279.68x = 6,415.07 × 2,085.66
  4. Step 4: Simplify right side
    4,279.68x = 13,379,644.47
  5. Step 5: Solve for x
    x = 13,379,644.47/4,279.68
  6. Step 6: Final answer
    x = 3,126.32

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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.