Home / 1,890.96-2,837.35-1,425.46

Finding the Fourth Proportional to 1,890.96, 2,837.35 and 1,425.46

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Solution

The fourth proportional to 1,890.96, 2,837.35 and 1,425.46 is: 2,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.96 : 2,837.35 = 1,425.46 : x
  2. Step 2: Convert to fraction form
    1,890.96/2,837.35 = 1,425.46/x
  3. Step 3: Cross multiply
    1,890.96x = 2,837.35 × 1,425.46
  4. Step 4: Simplify right side
    1,890.96x = 4,044,536.02
  5. Step 5: Solve for x
    x = 4,044,536.02/1,890.96
  6. Step 6: Final answer
    x = 2,138.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.