Home / 2,076.10-3,114.08-1,209.76

Finding the Fourth Proportional to 2,076.10, 3,114.08 and 1,209.76

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Solution

The fourth proportional to 2,076.10, 3,114.08 and 1,209.76 is: 1,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.10 : 3,114.08 = 1,209.76 : x
  2. Step 2: Convert to fraction form
    2,076.10/3,114.08 = 1,209.76/x
  3. Step 3: Cross multiply
    2,076.10x = 3,114.08 × 1,209.76
  4. Step 4: Simplify right side
    2,076.10x = 3,767,289.42
  5. Step 5: Solve for x
    x = 3,767,289.42/2,076.10
  6. Step 6: Final answer
    x = 1,814.60

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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.