Home / 2,827.49-4,220.64-2,619.04

Finding the Fourth Proportional to 2,827.49, 4,220.64 and 2,619.04

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Solution

The fourth proportional to 2,827.49, 4,220.64 and 2,619.04 is: 3,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.49 : 4,220.64 = 2,619.04 : x
  2. Step 2: Convert to fraction form
    2,827.49/4,220.64 = 2,619.04/x
  3. Step 3: Cross multiply
    2,827.49x = 4,220.64 × 2,619.04
  4. Step 4: Simplify right side
    2,827.49x = 11,054,014.43
  5. Step 5: Solve for x
    x = 11,054,014.43/2,827.49
  6. Step 6: Final answer
    x = 3,909.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.