Home / 4,651.26-6,420.43-3,079.86

Finding the Fourth Proportional to 4,651.26, 6,420.43 and 3,079.86

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Solution

The fourth proportional to 4,651.26, 6,420.43 and 3,079.86 is: 4,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.26 : 6,420.43 = 3,079.86 : x
  2. Step 2: Convert to fraction form
    4,651.26/6,420.43 = 3,079.86/x
  3. Step 3: Cross multiply
    4,651.26x = 6,420.43 × 3,079.86
  4. Step 4: Simplify right side
    4,651.26x = 19,774,010.14
  5. Step 5: Solve for x
    x = 19,774,010.14/4,651.26
  6. Step 6: Final answer
    x = 4,251.32

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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.