Home / 2,975.06-4,108.74-2,256.08

Finding the Fourth Proportional to 2,975.06, 4,108.74 and 2,256.08

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Solution

The fourth proportional to 2,975.06, 4,108.74 and 2,256.08 is: 3,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.06 : 4,108.74 = 2,256.08 : x
  2. Step 2: Convert to fraction form
    2,975.06/4,108.74 = 2,256.08/x
  3. Step 3: Cross multiply
    2,975.06x = 4,108.74 × 2,256.08
  4. Step 4: Simplify right side
    2,975.06x = 9,269,646.14
  5. Step 5: Solve for x
    x = 9,269,646.14/2,975.06
  6. Step 6: Final answer
    x = 3,115.78

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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.