Home / 3,679.06-5,077.08-2,085.70

Finding the Fourth Proportional to 3,679.06, 5,077.08 and 2,085.70

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Solution

The fourth proportional to 3,679.06, 5,077.08 and 2,085.70 is: 2,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.06 : 5,077.08 = 2,085.70 : x
  2. Step 2: Convert to fraction form
    3,679.06/5,077.08 = 2,085.70/x
  3. Step 3: Cross multiply
    3,679.06x = 5,077.08 × 2,085.70
  4. Step 4: Simplify right side
    3,679.06x = 10,589,265.76
  5. Step 5: Solve for x
    x = 10,589,265.76/3,679.06
  6. Step 6: Final answer
    x = 2,878.25

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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.