Home / 4,289.50-5,915.46-2,798.56

Finding the Fourth Proportional to 4,289.50, 5,915.46 and 2,798.56

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Solution

The fourth proportional to 4,289.50, 5,915.46 and 2,798.56 is: 3,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.50 : 5,915.46 = 2,798.56 : x
  2. Step 2: Convert to fraction form
    4,289.50/5,915.46 = 2,798.56/x
  3. Step 3: Cross multiply
    4,289.50x = 5,915.46 × 2,798.56
  4. Step 4: Simplify right side
    4,289.50x = 16,554,769.74
  5. Step 5: Solve for x
    x = 16,554,769.74/4,289.50
  6. Step 6: Final answer
    x = 3,859.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.