Home / 2,220.37-3,064.48-2,121.95

Finding the Fourth Proportional to 2,220.37, 3,064.48 and 2,121.95

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Solution

The fourth proportional to 2,220.37, 3,064.48 and 2,121.95 is: 2,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.37 : 3,064.48 = 2,121.95 : x
  2. Step 2: Convert to fraction form
    2,220.37/3,064.48 = 2,121.95/x
  3. Step 3: Cross multiply
    2,220.37x = 3,064.48 × 2,121.95
  4. Step 4: Simplify right side
    2,220.37x = 6,502,668.03
  5. Step 5: Solve for x
    x = 6,502,668.03/2,220.37
  6. Step 6: Final answer
    x = 2,928.65

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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.