Home / 6,620.32-9,138.90-4,383.28

Finding the Fourth Proportional to 6,620.32, 9,138.90 and 4,383.28

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Solution

The fourth proportional to 6,620.32, 9,138.90 and 4,383.28 is: 6,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.32 : 9,138.90 = 4,383.28 : x
  2. Step 2: Convert to fraction form
    6,620.32/9,138.90 = 4,383.28/x
  3. Step 3: Cross multiply
    6,620.32x = 9,138.90 × 4,383.28
  4. Step 4: Simplify right side
    6,620.32x = 40,058,357.59
  5. Step 5: Solve for x
    x = 40,058,357.59/6,620.32
  6. Step 6: Final answer
    x = 6,050.82

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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.