Home / 2,890.72-4,336.08-1,245.64

Finding the Fourth Proportional to 2,890.72, 4,336.08 and 1,245.64

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Solution

The fourth proportional to 2,890.72, 4,336.08 and 1,245.64 is: 1,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.72 : 4,336.08 = 1,245.64 : x
  2. Step 2: Convert to fraction form
    2,890.72/4,336.08 = 1,245.64/x
  3. Step 3: Cross multiply
    2,890.72x = 4,336.08 × 1,245.64
  4. Step 4: Simplify right side
    2,890.72x = 5,401,194.69
  5. Step 5: Solve for x
    x = 5,401,194.69/2,890.72
  6. Step 6: Final answer
    x = 1,868.46

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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.