Home / 2,768.45-4,152.40-1,037.21

Finding the Fourth Proportional to 2,768.45, 4,152.40 and 1,037.21

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Solution

The fourth proportional to 2,768.45, 4,152.40 and 1,037.21 is: 1,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.45 : 4,152.40 = 1,037.21 : x
  2. Step 2: Convert to fraction form
    2,768.45/4,152.40 = 1,037.21/x
  3. Step 3: Cross multiply
    2,768.45x = 4,152.40 × 1,037.21
  4. Step 4: Simplify right side
    2,768.45x = 4,306,887.45
  5. Step 5: Solve for x
    x = 4,306,887.45/2,768.45
  6. Step 6: Final answer
    x = 1,555.71

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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.