Home / 2,922.87-4,031.22-2,070.63

Finding the Fourth Proportional to 2,922.87, 4,031.22 and 2,070.63

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Solution

The fourth proportional to 2,922.87, 4,031.22 and 2,070.63 is: 2,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.87 : 4,031.22 = 2,070.63 : x
  2. Step 2: Convert to fraction form
    2,922.87/4,031.22 = 2,070.63/x
  3. Step 3: Cross multiply
    2,922.87x = 4,031.22 × 2,070.63
  4. Step 4: Simplify right side
    2,922.87x = 8,347,165.07
  5. Step 5: Solve for x
    x = 8,347,165.07/2,922.87
  6. Step 6: Final answer
    x = 2,855.81

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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.