Home / 5,785.84-8,679.68-1,889.36

Finding the Fourth Proportional to 5,785.84, 8,679.68 and 1,889.36

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Solution

The fourth proportional to 5,785.84, 8,679.68 and 1,889.36 is: 2,834.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.84 : 8,679.68 = 1,889.36 : x
  2. Step 2: Convert to fraction form
    5,785.84/8,679.68 = 1,889.36/x
  3. Step 3: Cross multiply
    5,785.84x = 8,679.68 × 1,889.36
  4. Step 4: Simplify right side
    5,785.84x = 16,399,040.20
  5. Step 5: Solve for x
    x = 16,399,040.20/5,785.84
  6. Step 6: Final answer
    x = 2,834.34

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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.