Home / 6,621.88-9,135.86-4,106.04

Finding the Fourth Proportional to 6,621.88, 9,135.86 and 4,106.04

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Solution

The fourth proportional to 6,621.88, 9,135.86 and 4,106.04 is: 5,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.88 : 9,135.86 = 4,106.04 : x
  2. Step 2: Convert to fraction form
    6,621.88/9,135.86 = 4,106.04/x
  3. Step 3: Cross multiply
    6,621.88x = 9,135.86 × 4,106.04
  4. Step 4: Simplify right side
    6,621.88x = 37,512,206.59
  5. Step 5: Solve for x
    x = 37,512,206.59/6,621.88
  6. Step 6: Final answer
    x = 5,664.89

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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.