Home / 2,245.07-3,367.35-858.38

Finding the Fourth Proportional to 2,245.07, 3,367.35 and 858.38

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Solution

The fourth proportional to 2,245.07, 3,367.35 and 858.38 is: 1,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.07 : 3,367.35 = 858.38 : x
  2. Step 2: Convert to fraction form
    2,245.07/3,367.35 = 858.38/x
  3. Step 3: Cross multiply
    2,245.07x = 3,367.35 × 858.38
  4. Step 4: Simplify right side
    2,245.07x = 2,890,444.76
  5. Step 5: Solve for x
    x = 2,890,444.76/2,245.07
  6. Step 6: Final answer
    x = 1,287.46

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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.