Home / 2,841.12-4,262.04-1,281.60

Finding the Fourth Proportional to 2,841.12, 4,262.04 and 1,281.60

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Solution

The fourth proportional to 2,841.12, 4,262.04 and 1,281.60 is: 1,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.12 : 4,262.04 = 1,281.60 : x
  2. Step 2: Convert to fraction form
    2,841.12/4,262.04 = 1,281.60/x
  3. Step 3: Cross multiply
    2,841.12x = 4,262.04 × 1,281.60
  4. Step 4: Simplify right side
    2,841.12x = 5,462,230.46
  5. Step 5: Solve for x
    x = 5,462,230.46/2,841.12
  6. Step 6: Final answer
    x = 1,922.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.