Home / 1,889.38-2,602.44-1,590.26

Finding the Fourth Proportional to 1,889.38, 2,602.44 and 1,590.26

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Solution

The fourth proportional to 1,889.38, 2,602.44 and 1,590.26 is: 2,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.38 : 2,602.44 = 1,590.26 : x
  2. Step 2: Convert to fraction form
    1,889.38/2,602.44 = 1,590.26/x
  3. Step 3: Cross multiply
    1,889.38x = 2,602.44 × 1,590.26
  4. Step 4: Simplify right side
    1,889.38x = 4,138,543.22
  5. Step 5: Solve for x
    x = 4,138,543.22/1,889.38
  6. Step 6: Final answer
    x = 2,190.42

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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.