Home / 2,849.48-4,274.01-769.60

Finding the Fourth Proportional to 2,849.48, 4,274.01 and 769.60

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Solution

The fourth proportional to 2,849.48, 4,274.01 and 769.60 is: 1,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.48 : 4,274.01 = 769.60 : x
  2. Step 2: Convert to fraction form
    2,849.48/4,274.01 = 769.60/x
  3. Step 3: Cross multiply
    2,849.48x = 4,274.01 × 769.60
  4. Step 4: Simplify right side
    2,849.48x = 3,289,267.41
  5. Step 5: Solve for x
    x = 3,289,267.41/2,849.48
  6. Step 6: Final answer
    x = 1,154.34

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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.