Home / 4,189.90-6,280.26-2,106.58

Finding the Fourth Proportional to 4,189.90, 6,280.26 and 2,106.58

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Solution

The fourth proportional to 4,189.90, 6,280.26 and 2,106.58 is: 3,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.90 : 6,280.26 = 2,106.58 : x
  2. Step 2: Convert to fraction form
    4,189.90/6,280.26 = 2,106.58/x
  3. Step 3: Cross multiply
    4,189.90x = 6,280.26 × 2,106.58
  4. Step 4: Simplify right side
    4,189.90x = 13,229,870.11
  5. Step 5: Solve for x
    x = 13,229,870.11/4,189.90
  6. Step 6: Final answer
    x = 3,157.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.