Home / 2,758.86-4,127.99-1,644.21

Finding the Fourth Proportional to 2,758.86, 4,127.99 and 1,644.21

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Solution

The fourth proportional to 2,758.86, 4,127.99 and 1,644.21 is: 2,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.86 : 4,127.99 = 1,644.21 : x
  2. Step 2: Convert to fraction form
    2,758.86/4,127.99 = 1,644.21/x
  3. Step 3: Cross multiply
    2,758.86x = 4,127.99 × 1,644.21
  4. Step 4: Simplify right side
    2,758.86x = 6,787,274.22
  5. Step 5: Solve for x
    x = 6,787,274.22/2,758.86
  6. Step 6: Final answer
    x = 2,460.17

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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.