Home / 4,309.20-5,940.54-2,890.35

Finding the Fourth Proportional to 4,309.20, 5,940.54 and 2,890.35

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Solution

The fourth proportional to 4,309.20, 5,940.54 and 2,890.35 is: 3,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.20 : 5,940.54 = 2,890.35 : x
  2. Step 2: Convert to fraction form
    4,309.20/5,940.54 = 2,890.35/x
  3. Step 3: Cross multiply
    4,309.20x = 5,940.54 × 2,890.35
  4. Step 4: Simplify right side
    4,309.20x = 17,170,239.79
  5. Step 5: Solve for x
    x = 17,170,239.79/4,309.20
  6. Step 6: Final answer
    x = 3,984.55

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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.