Home / 2,284.13-3,152.55-1,289.42

Finding the Fourth Proportional to 2,284.13, 3,152.55 and 1,289.42

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Solution

The fourth proportional to 2,284.13, 3,152.55 and 1,289.42 is: 1,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.13 : 3,152.55 = 1,289.42 : x
  2. Step 2: Convert to fraction form
    2,284.13/3,152.55 = 1,289.42/x
  3. Step 3: Cross multiply
    2,284.13x = 3,152.55 × 1,289.42
  4. Step 4: Simplify right side
    2,284.13x = 4,064,945.26
  5. Step 5: Solve for x
    x = 4,064,945.26/2,284.13
  6. Step 6: Final answer
    x = 1,779.65

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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.