Home / 2,842.40-3,922.48-1,583.44

Finding the Fourth Proportional to 2,842.40, 3,922.48 and 1,583.44

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Solution

The fourth proportional to 2,842.40, 3,922.48 and 1,583.44 is: 2,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.40 : 3,922.48 = 1,583.44 : x
  2. Step 2: Convert to fraction form
    2,842.40/3,922.48 = 1,583.44/x
  3. Step 3: Cross multiply
    2,842.40x = 3,922.48 × 1,583.44
  4. Step 4: Simplify right side
    2,842.40x = 6,211,011.73
  5. Step 5: Solve for x
    x = 6,211,011.73/2,842.40
  6. Step 6: Final answer
    x = 2,185.13

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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.