Home / 5,268.51-7,270.30-3,145.45

Finding the Fourth Proportional to 5,268.51, 7,270.30 and 3,145.45

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Solution

The fourth proportional to 5,268.51, 7,270.30 and 3,145.45 is: 4,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.51 : 7,270.30 = 3,145.45 : x
  2. Step 2: Convert to fraction form
    5,268.51/7,270.30 = 3,145.45/x
  3. Step 3: Cross multiply
    5,268.51x = 7,270.30 × 3,145.45
  4. Step 4: Simplify right side
    5,268.51x = 22,868,365.14
  5. Step 5: Solve for x
    x = 22,868,365.14/5,268.51
  6. Step 6: Final answer
    x = 4,340.58

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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.