Home / 2,215.49-3,051.07-2,208.80

Finding the Fourth Proportional to 2,215.49, 3,051.07 and 2,208.80

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Solution

The fourth proportional to 2,215.49, 3,051.07 and 2,208.80 is: 3,041.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.49 : 3,051.07 = 2,208.80 : x
  2. Step 2: Convert to fraction form
    2,215.49/3,051.07 = 2,208.80/x
  3. Step 3: Cross multiply
    2,215.49x = 3,051.07 × 2,208.80
  4. Step 4: Simplify right side
    2,215.49x = 6,739,205.52
  5. Step 5: Solve for x
    x = 6,739,205.52/2,215.49
  6. Step 6: Final answer
    x = 3,041.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.