Home / 2,188.66-3,019.44-1,303.60

Finding the Fourth Proportional to 2,188.66, 3,019.44 and 1,303.60

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Solution

The fourth proportional to 2,188.66, 3,019.44 and 1,303.60 is: 1,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.66 : 3,019.44 = 1,303.60 : x
  2. Step 2: Convert to fraction form
    2,188.66/3,019.44 = 1,303.60/x
  3. Step 3: Cross multiply
    2,188.66x = 3,019.44 × 1,303.60
  4. Step 4: Simplify right side
    2,188.66x = 3,936,141.98
  5. Step 5: Solve for x
    x = 3,936,141.98/2,188.66
  6. Step 6: Final answer
    x = 1,798.43

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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.