Home / 5,858.40-8,786.70-2,160.12

Finding the Fourth Proportional to 5,858.40, 8,786.70 and 2,160.12

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Solution

The fourth proportional to 5,858.40, 8,786.70 and 2,160.12 is: 3,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.40 : 8,786.70 = 2,160.12 : x
  2. Step 2: Convert to fraction form
    5,858.40/8,786.70 = 2,160.12/x
  3. Step 3: Cross multiply
    5,858.40x = 8,786.70 × 2,160.12
  4. Step 4: Simplify right side
    5,858.40x = 18,980,326.40
  5. Step 5: Solve for x
    x = 18,980,326.40/5,858.40
  6. Step 6: Final answer
    x = 3,239.85

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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.