Home / 5,785.36-8,679.41-1,889.75

Finding the Fourth Proportional to 5,785.36, 8,679.41 and 1,889.75

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Solution

The fourth proportional to 5,785.36, 8,679.41 and 1,889.75 is: 2,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.36 : 8,679.41 = 1,889.75 : x
  2. Step 2: Convert to fraction form
    5,785.36/8,679.41 = 1,889.75/x
  3. Step 3: Cross multiply
    5,785.36x = 8,679.41 × 1,889.75
  4. Step 4: Simplify right side
    5,785.36x = 16,401,915.05
  5. Step 5: Solve for x
    x = 16,401,915.05/5,785.36
  6. Step 6: Final answer
    x = 2,835.07

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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.