Home / 5,085.96-7,018.31-2,847.46

Finding the Fourth Proportional to 5,085.96, 7,018.31 and 2,847.46

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Solution

The fourth proportional to 5,085.96, 7,018.31 and 2,847.46 is: 3,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.96 : 7,018.31 = 2,847.46 : x
  2. Step 2: Convert to fraction form
    5,085.96/7,018.31 = 2,847.46/x
  3. Step 3: Cross multiply
    5,085.96x = 7,018.31 × 2,847.46
  4. Step 4: Simplify right side
    5,085.96x = 19,984,346.57
  5. Step 5: Solve for x
    x = 19,984,346.57/5,085.96
  6. Step 6: Final answer
    x = 3,929.32

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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.