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Finding the Fourth Proportional to 4,986.93, 6,881.88 and 2,718.30

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Solution

The fourth proportional to 4,986.93, 6,881.88 and 2,718.30 is: 3,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.93 : 6,881.88 = 2,718.30 : x
  2. Step 2: Convert to fraction form
    4,986.93/6,881.88 = 2,718.30/x
  3. Step 3: Cross multiply
    4,986.93x = 6,881.88 × 2,718.30
  4. Step 4: Simplify right side
    4,986.93x = 18,707,014.40
  5. Step 5: Solve for x
    x = 18,707,014.40/4,986.93
  6. Step 6: Final answer
    x = 3,751.21

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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.