Home / 6,600.09-9,105.33-4,210.77

Finding the Fourth Proportional to 6,600.09, 9,105.33 and 4,210.77

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Solution

The fourth proportional to 6,600.09, 9,105.33 and 4,210.77 is: 5,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.09 : 9,105.33 = 4,210.77 : x
  2. Step 2: Convert to fraction form
    6,600.09/9,105.33 = 4,210.77/x
  3. Step 3: Cross multiply
    6,600.09x = 9,105.33 × 4,210.77
  4. Step 4: Simplify right side
    6,600.09x = 38,340,450.40
  5. Step 5: Solve for x
    x = 38,340,450.40/6,600.09
  6. Step 6: Final answer
    x = 5,809.08

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Half scale
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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.