Home / 3,084.89-4,255.72-1,889.51

Finding the Fourth Proportional to 3,084.89, 4,255.72 and 1,889.51

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Solution

The fourth proportional to 3,084.89, 4,255.72 and 1,889.51 is: 2,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.89 : 4,255.72 = 1,889.51 : x
  2. Step 2: Convert to fraction form
    3,084.89/4,255.72 = 1,889.51/x
  3. Step 3: Cross multiply
    3,084.89x = 4,255.72 × 1,889.51
  4. Step 4: Simplify right side
    3,084.89x = 8,041,199.49
  5. Step 5: Solve for x
    x = 8,041,199.49/3,084.89
  6. Step 6: Final answer
    x = 2,606.64

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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.