Home / 1,884.07-2,823.90-1,420.36

Finding the Fourth Proportional to 1,884.07, 2,823.90 and 1,420.36

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Solution

The fourth proportional to 1,884.07, 2,823.90 and 1,420.36 is: 2,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.07 : 2,823.90 = 1,420.36 : x
  2. Step 2: Convert to fraction form
    1,884.07/2,823.90 = 1,420.36/x
  3. Step 3: Cross multiply
    1,884.07x = 2,823.90 × 1,420.36
  4. Step 4: Simplify right side
    1,884.07x = 4,010,954.60
  5. Step 5: Solve for x
    x = 4,010,954.60/1,884.07
  6. Step 6: Final answer
    x = 2,128.88

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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.