Home / 6,620.45-9,139.07-4,383.41

Finding the Fourth Proportional to 6,620.45, 9,139.07 and 4,383.41

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Solution

The fourth proportional to 6,620.45, 9,139.07 and 4,383.41 is: 6,050.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.45 : 9,139.07 = 4,383.41 : x
  2. Step 2: Convert to fraction form
    6,620.45/9,139.07 = 4,383.41/x
  3. Step 3: Cross multiply
    6,620.45x = 9,139.07 × 4,383.41
  4. Step 4: Simplify right side
    6,620.45x = 40,060,256.09
  5. Step 5: Solve for x
    x = 40,060,256.09/6,620.45
  6. Step 6: Final answer
    x = 6,050.99

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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.