Home / 5,122.51-7,070.63-2,998.54

Finding the Fourth Proportional to 5,122.51, 7,070.63 and 2,998.54

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Solution

The fourth proportional to 5,122.51, 7,070.63 and 2,998.54 is: 4,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.51 : 7,070.63 = 2,998.54 : x
  2. Step 2: Convert to fraction form
    5,122.51/7,070.63 = 2,998.54/x
  3. Step 3: Cross multiply
    5,122.51x = 7,070.63 × 2,998.54
  4. Step 4: Simplify right side
    5,122.51x = 21,201,531.53
  5. Step 5: Solve for x
    x = 21,201,531.53/5,122.51
  6. Step 6: Final answer
    x = 4,138.90

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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.