Home / 2,813.48-4,216.25-2,152.79

Finding the Fourth Proportional to 2,813.48, 4,216.25 and 2,152.79

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Solution

The fourth proportional to 2,813.48, 4,216.25 and 2,152.79 is: 3,226.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.48 : 4,216.25 = 2,152.79 : x
  2. Step 2: Convert to fraction form
    2,813.48/4,216.25 = 2,152.79/x
  3. Step 3: Cross multiply
    2,813.48x = 4,216.25 × 2,152.79
  4. Step 4: Simplify right side
    2,813.48x = 9,076,716.76
  5. Step 5: Solve for x
    x = 9,076,716.76/2,813.48
  6. Step 6: Final answer
    x = 3,226.16

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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.