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Finding the Fourth Proportional to 6,144.08, 8,479.54 and 3,418.89

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Solution

The fourth proportional to 6,144.08, 8,479.54 and 3,418.89 is: 4,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.08 : 8,479.54 = 3,418.89 : x
  2. Step 2: Convert to fraction form
    6,144.08/8,479.54 = 3,418.89/x
  3. Step 3: Cross multiply
    6,144.08x = 8,479.54 × 3,418.89
  4. Step 4: Simplify right side
    6,144.08x = 28,990,574.17
  5. Step 5: Solve for x
    x = 28,990,574.17/6,144.08
  6. Step 6: Final answer
    x = 4,718.45

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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.