Home / 2,239.19-3,090.48-1,400.44

Finding the Fourth Proportional to 2,239.19, 3,090.48 and 1,400.44

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Solution

The fourth proportional to 2,239.19, 3,090.48 and 1,400.44 is: 1,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.19 : 3,090.48 = 1,400.44 : x
  2. Step 2: Convert to fraction form
    2,239.19/3,090.48 = 1,400.44/x
  3. Step 3: Cross multiply
    2,239.19x = 3,090.48 × 1,400.44
  4. Step 4: Simplify right side
    2,239.19x = 4,328,031.81
  5. Step 5: Solve for x
    x = 4,328,031.81/2,239.19
  6. Step 6: Final answer
    x = 1,932.86

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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.