Home / 2,619.94-3,615.62-1,440.98

Finding the Fourth Proportional to 2,619.94, 3,615.62 and 1,440.98

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Solution

The fourth proportional to 2,619.94, 3,615.62 and 1,440.98 is: 1,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.94 : 3,615.62 = 1,440.98 : x
  2. Step 2: Convert to fraction form
    2,619.94/3,615.62 = 1,440.98/x
  3. Step 3: Cross multiply
    2,619.94x = 3,615.62 × 1,440.98
  4. Step 4: Simplify right side
    2,619.94x = 5,210,037.94
  5. Step 5: Solve for x
    x = 5,210,037.94/2,619.94
  6. Step 6: Final answer
    x = 1,988.61

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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.