Home / 5,655.06-7,805.58-3,976.86

Finding the Fourth Proportional to 5,655.06, 7,805.58 and 3,976.86

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Solution

The fourth proportional to 5,655.06, 7,805.58 and 3,976.86 is: 5,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.06 : 7,805.58 = 3,976.86 : x
  2. Step 2: Convert to fraction form
    5,655.06/7,805.58 = 3,976.86/x
  3. Step 3: Cross multiply
    5,655.06x = 7,805.58 × 3,976.86
  4. Step 4: Simplify right side
    5,655.06x = 31,041,698.88
  5. Step 5: Solve for x
    x = 31,041,698.88/5,655.06
  6. Step 6: Final answer
    x = 5,489.19

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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.