Home / 5,903.80-8,145.30-3,809.32

Finding the Fourth Proportional to 5,903.80, 8,145.30 and 3,809.32

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Solution

The fourth proportional to 5,903.80, 8,145.30 and 3,809.32 is: 5,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903.80 : 8,145.30 = 3,809.32 : x
  2. Step 2: Convert to fraction form
    5,903.80/8,145.30 = 3,809.32/x
  3. Step 3: Cross multiply
    5,903.80x = 8,145.30 × 3,809.32
  4. Step 4: Simplify right side
    5,903.80x = 31,028,054.20
  5. Step 5: Solve for x
    x = 31,028,054.20/5,903.80
  6. Step 6: Final answer
    x = 5,255.61

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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.