Home / 4,185.09-6,278.21-1,412.55

Finding the Fourth Proportional to 4,185.09, 6,278.21 and 1,412.55

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Solution

The fourth proportional to 4,185.09, 6,278.21 and 1,412.55 is: 2,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.09 : 6,278.21 = 1,412.55 : x
  2. Step 2: Convert to fraction form
    4,185.09/6,278.21 = 1,412.55/x
  3. Step 3: Cross multiply
    4,185.09x = 6,278.21 × 1,412.55
  4. Step 4: Simplify right side
    4,185.09x = 8,868,283.77
  5. Step 5: Solve for x
    x = 8,868,283.77/4,185.09
  6. Step 6: Final answer
    x = 2,119.02

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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.