Home / 6,971.51-9,619.23-4,138.49

Finding the Fourth Proportional to 6,971.51, 9,619.23 and 4,138.49

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Solution

The fourth proportional to 6,971.51, 9,619.23 and 4,138.49 is: 5,710.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.51 : 9,619.23 = 4,138.49 : x
  2. Step 2: Convert to fraction form
    6,971.51/9,619.23 = 4,138.49/x
  3. Step 3: Cross multiply
    6,971.51x = 9,619.23 × 4,138.49
  4. Step 4: Simplify right side
    6,971.51x = 39,809,039.07
  5. Step 5: Solve for x
    x = 39,809,039.07/6,971.51
  6. Step 6: Final answer
    x = 5,710.24

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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.