Home / 2,270.12-3,128.29-1,482.80

Finding the Fourth Proportional to 2,270.12, 3,128.29 and 1,482.80

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Solution

The fourth proportional to 2,270.12, 3,128.29 and 1,482.80 is: 2,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.12 : 3,128.29 = 1,482.80 : x
  2. Step 2: Convert to fraction form
    2,270.12/3,128.29 = 1,482.80/x
  3. Step 3: Cross multiply
    2,270.12x = 3,128.29 × 1,482.80
  4. Step 4: Simplify right side
    2,270.12x = 4,638,609.06
  5. Step 5: Solve for x
    x = 4,638,609.06/2,270.12
  6. Step 6: Final answer
    x = 2,043.34

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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.