Home / 3,679.09-5,077.95-2,420.27

Finding the Fourth Proportional to 3,679.09, 5,077.95 and 2,420.27

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Solution

The fourth proportional to 3,679.09, 5,077.95 and 2,420.27 is: 3,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.09 : 5,077.95 = 2,420.27 : x
  2. Step 2: Convert to fraction form
    3,679.09/5,077.95 = 2,420.27/x
  3. Step 3: Cross multiply
    3,679.09x = 5,077.95 × 2,420.27
  4. Step 4: Simplify right side
    3,679.09x = 12,290,010.05
  5. Step 5: Solve for x
    x = 12,290,010.05/3,679.09
  6. Step 6: Final answer
    x = 3,340.50

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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.