Home / 5,235.96-7,225.56-2,878.08

Finding the Fourth Proportional to 5,235.96, 7,225.56 and 2,878.08

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Solution

The fourth proportional to 5,235.96, 7,225.56 and 2,878.08 is: 3,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.96 : 7,225.56 = 2,878.08 : x
  2. Step 2: Convert to fraction form
    5,235.96/7,225.56 = 2,878.08/x
  3. Step 3: Cross multiply
    5,235.96x = 7,225.56 × 2,878.08
  4. Step 4: Simplify right side
    5,235.96x = 20,795,739.72
  5. Step 5: Solve for x
    x = 20,795,739.72/5,235.96
  6. Step 6: Final answer
    x = 3,971.71

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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.