Home / 3,719.79-5,576.85-2,899.80

Finding the Fourth Proportional to 3,719.79, 5,576.85 and 2,899.80

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Solution

The fourth proportional to 3,719.79, 5,576.85 and 2,899.80 is: 4,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.79 : 5,576.85 = 2,899.80 : x
  2. Step 2: Convert to fraction form
    3,719.79/5,576.85 = 2,899.80/x
  3. Step 3: Cross multiply
    3,719.79x = 5,576.85 × 2,899.80
  4. Step 4: Simplify right side
    3,719.79x = 16,171,749.63
  5. Step 5: Solve for x
    x = 16,171,749.63/3,719.79
  6. Step 6: Final answer
    x = 4,347.49

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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.