Home / 6,639.90-9,122.06-5,941.00

Finding the Fourth Proportional to 6,639.90, 9,122.06 and 5,941.00

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Solution

The fourth proportional to 6,639.90, 9,122.06 and 5,941.00 is: 8,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.90 : 9,122.06 = 5,941.00 : x
  2. Step 2: Convert to fraction form
    6,639.90/9,122.06 = 5,941.00/x
  3. Step 3: Cross multiply
    6,639.90x = 9,122.06 × 5,941.00
  4. Step 4: Simplify right side
    6,639.90x = 54,194,091.63
  5. Step 5: Solve for x
    x = 54,194,091.63/6,639.90
  6. Step 6: Final answer
    x = 8,161.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.