Home / 5,247.39-7,870.83-1,960.23

Finding the Fourth Proportional to 5,247.39, 7,870.83 and 1,960.23

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Solution

The fourth proportional to 5,247.39, 7,870.83 and 1,960.23 is: 2,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.39 : 7,870.83 = 1,960.23 : x
  2. Step 2: Convert to fraction form
    5,247.39/7,870.83 = 1,960.23/x
  3. Step 3: Cross multiply
    5,247.39x = 7,870.83 × 1,960.23
  4. Step 4: Simplify right side
    5,247.39x = 15,428,637.09
  5. Step 5: Solve for x
    x = 15,428,637.09/5,247.39
  6. Step 6: Final answer
    x = 2,940.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.