Home / 2,283.85-3,151.65-1,289.22

Finding the Fourth Proportional to 2,283.85, 3,151.65 and 1,289.22

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Solution

The fourth proportional to 2,283.85, 3,151.65 and 1,289.22 is: 1,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.85 : 3,151.65 = 1,289.22 : x
  2. Step 2: Convert to fraction form
    2,283.85/3,151.65 = 1,289.22/x
  3. Step 3: Cross multiply
    2,283.85x = 3,151.65 × 1,289.22
  4. Step 4: Simplify right side
    2,283.85x = 4,063,173.71
  5. Step 5: Solve for x
    x = 4,063,173.71/2,283.85
  6. Step 6: Final answer
    x = 1,779.09

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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.