Home / 6,660.09-9,185.00-4,640.15

Finding the Fourth Proportional to 6,660.09, 9,185.00 and 4,640.15

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Solution

The fourth proportional to 6,660.09, 9,185.00 and 4,640.15 is: 6,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.09 : 9,185.00 = 4,640.15 : x
  2. Step 2: Convert to fraction form
    6,660.09/9,185.00 = 4,640.15/x
  3. Step 3: Cross multiply
    6,660.09x = 9,185.00 × 4,640.15
  4. Step 4: Simplify right side
    6,660.09x = 42,619,777.51
  5. Step 5: Solve for x
    x = 42,619,777.51/6,660.09
  6. Step 6: Final answer
    x = 6,399.28

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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.