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Finding the Fourth Proportional to 2,718.16, 4,077.12 and 1,894

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Solution

The fourth proportional to 2,718.16, 4,077.12 and 1,894 is: 2,840.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.16 : 4,077.12 = 1,894 : x
  2. Step 2: Convert to fraction form
    2,718.16/4,077.12 = 1,894/x
  3. Step 3: Cross multiply
    2,718.16x = 4,077.12 × 1,894
  4. Step 4: Simplify right side
    2,718.16x = 7,722,065.28
  5. Step 5: Solve for x
    x = 7,722,065.28/2,718.16
  6. Step 6: Final answer
    x = 2,840.92

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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.