Home / 1,912.22-2,643.29-1,595.64

Finding the Fourth Proportional to 1,912.22, 2,643.29 and 1,595.64

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Solution

The fourth proportional to 1,912.22, 2,643.29 and 1,595.64 is: 2,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.22 : 2,643.29 = 1,595.64 : x
  2. Step 2: Convert to fraction form
    1,912.22/2,643.29 = 1,595.64/x
  3. Step 3: Cross multiply
    1,912.22x = 2,643.29 × 1,595.64
  4. Step 4: Simplify right side
    1,912.22x = 4,217,731.28
  5. Step 5: Solve for x
    x = 4,217,731.28/1,912.22
  6. Step 6: Final answer
    x = 2,205.68

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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.