Home / 2,309.16-3,188.88-1,975.62

Finding the Fourth Proportional to 2,309.16, 3,188.88 and 1,975.62

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Solution

The fourth proportional to 2,309.16, 3,188.88 and 1,975.62 is: 2,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.16 : 3,188.88 = 1,975.62 : x
  2. Step 2: Convert to fraction form
    2,309.16/3,188.88 = 1,975.62/x
  3. Step 3: Cross multiply
    2,309.16x = 3,188.88 × 1,975.62
  4. Step 4: Simplify right side
    2,309.16x = 6,300,015.11
  5. Step 5: Solve for x
    x = 6,300,015.11/2,309.16
  6. Step 6: Final answer
    x = 2,728.27

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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.