Home / 2,768.28-4,153.56-2,031.65

Finding the Fourth Proportional to 2,768.28, 4,153.56 and 2,031.65

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Solution

The fourth proportional to 2,768.28, 4,153.56 and 2,031.65 is: 3,048.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.28 : 4,153.56 = 2,031.65 : x
  2. Step 2: Convert to fraction form
    2,768.28/4,153.56 = 2,031.65/x
  3. Step 3: Cross multiply
    2,768.28x = 4,153.56 × 2,031.65
  4. Step 4: Simplify right side
    2,768.28x = 8,438,580.17
  5. Step 5: Solve for x
    x = 8,438,580.17/2,768.28
  6. Step 6: Final answer
    x = 3,048.31

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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.