Home / 2,821.70-4,232.55-1,262.45

Finding the Fourth Proportional to 2,821.70, 4,232.55 and 1,262.45

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Solution

The fourth proportional to 2,821.70, 4,232.55 and 1,262.45 is: 1,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.70 : 4,232.55 = 1,262.45 : x
  2. Step 2: Convert to fraction form
    2,821.70/4,232.55 = 1,262.45/x
  3. Step 3: Cross multiply
    2,821.70x = 4,232.55 × 1,262.45
  4. Step 4: Simplify right side
    2,821.70x = 5,343,382.75
  5. Step 5: Solve for x
    x = 5,343,382.75/2,821.70
  6. Step 6: Final answer
    x = 1,893.68

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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.