Home / 5,117.67-7,062.09-2,879.45

Finding the Fourth Proportional to 5,117.67, 7,062.09 and 2,879.45

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Solution

The fourth proportional to 5,117.67, 7,062.09 and 2,879.45 is: 3,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.67 : 7,062.09 = 2,879.45 : x
  2. Step 2: Convert to fraction form
    5,117.67/7,062.09 = 2,879.45/x
  3. Step 3: Cross multiply
    5,117.67x = 7,062.09 × 2,879.45
  4. Step 4: Simplify right side
    5,117.67x = 20,334,935.05
  5. Step 5: Solve for x
    x = 20,334,935.05/5,117.67
  6. Step 6: Final answer
    x = 3,973.48

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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.