Home / 2,841.21-4,253.99-2,145.74

Finding the Fourth Proportional to 2,841.21, 4,253.99 and 2,145.74

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Solution

The fourth proportional to 2,841.21, 4,253.99 and 2,145.74 is: 3,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.21 : 4,253.99 = 2,145.74 : x
  2. Step 2: Convert to fraction form
    2,841.21/4,253.99 = 2,145.74/x
  3. Step 3: Cross multiply
    2,841.21x = 4,253.99 × 2,145.74
  4. Step 4: Simplify right side
    2,841.21x = 9,127,924.50
  5. Step 5: Solve for x
    x = 9,127,924.50/2,841.21
  6. Step 6: Final answer
    x = 3,212.69

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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.