Home / 2,289.63-3,150.99-2,191.23

Finding the Fourth Proportional to 2,289.63, 3,150.99 and 2,191.23

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Solution

The fourth proportional to 2,289.63, 3,150.99 and 2,191.23 is: 3,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.63 : 3,150.99 = 2,191.23 : x
  2. Step 2: Convert to fraction form
    2,289.63/3,150.99 = 2,191.23/x
  3. Step 3: Cross multiply
    2,289.63x = 3,150.99 × 2,191.23
  4. Step 4: Simplify right side
    2,289.63x = 6,904,543.82
  5. Step 5: Solve for x
    x = 6,904,543.82/2,289.63
  6. Step 6: Final answer
    x = 3,015.57

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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.