Home / 5,115.51-7,060.03-2,877.48

Finding the Fourth Proportional to 5,115.51, 7,060.03 and 2,877.48

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Solution

The fourth proportional to 5,115.51, 7,060.03 and 2,877.48 is: 3,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.51 : 7,060.03 = 2,877.48 : x
  2. Step 2: Convert to fraction form
    5,115.51/7,060.03 = 2,877.48/x
  3. Step 3: Cross multiply
    5,115.51x = 7,060.03 × 2,877.48
  4. Step 4: Simplify right side
    5,115.51x = 20,315,087.93
  5. Step 5: Solve for x
    x = 20,315,087.93/5,115.51
  6. Step 6: Final answer
    x = 3,971.27

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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.