Home / 5,085.63-7,018.19-2,847.51

Finding the Fourth Proportional to 5,085.63, 7,018.19 and 2,847.51

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Solution

The fourth proportional to 5,085.63, 7,018.19 and 2,847.51 is: 3,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.63 : 7,018.19 = 2,847.51 : x
  2. Step 2: Convert to fraction form
    5,085.63/7,018.19 = 2,847.51/x
  3. Step 3: Cross multiply
    5,085.63x = 7,018.19 × 2,847.51
  4. Step 4: Simplify right side
    5,085.63x = 19,984,351.97
  5. Step 5: Solve for x
    x = 19,984,351.97/5,085.63
  6. Step 6: Final answer
    x = 3,929.57

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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.