Home / 2,821.74-4,231.27-846.60

Finding the Fourth Proportional to 2,821.74, 4,231.27 and 846.60

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Solution

The fourth proportional to 2,821.74, 4,231.27 and 846.60 is: 1,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.74 : 4,231.27 = 846.60 : x
  2. Step 2: Convert to fraction form
    2,821.74/4,231.27 = 846.60/x
  3. Step 3: Cross multiply
    2,821.74x = 4,231.27 × 846.60
  4. Step 4: Simplify right side
    2,821.74x = 3,582,178.37
  5. Step 5: Solve for x
    x = 3,582,178.37/2,821.74
  6. Step 6: Final answer
    x = 1,269.49

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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.