Home / 2,638.44-3,641.34-1,590.48

Finding the Fourth Proportional to 2,638.44, 3,641.34 and 1,590.48

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Solution

The fourth proportional to 2,638.44, 3,641.34 and 1,590.48 is: 2,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.44 : 3,641.34 = 1,590.48 : x
  2. Step 2: Convert to fraction form
    2,638.44/3,641.34 = 1,590.48/x
  3. Step 3: Cross multiply
    2,638.44x = 3,641.34 × 1,590.48
  4. Step 4: Simplify right side
    2,638.44x = 5,791,478.44
  5. Step 5: Solve for x
    x = 5,791,478.44/2,638.44
  6. Step 6: Final answer
    x = 2,195.04

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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.