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Finding the Fourth Proportional to 4,718.43, 7,074.78 and 1,946.91

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Solution

The fourth proportional to 4,718.43, 7,074.78 and 1,946.91 is: 2,919.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.43 : 7,074.78 = 1,946.91 : x
  2. Step 2: Convert to fraction form
    4,718.43/7,074.78 = 1,946.91/x
  3. Step 3: Cross multiply
    4,718.43x = 7,074.78 × 1,946.91
  4. Step 4: Simplify right side
    4,718.43x = 13,773,959.93
  5. Step 5: Solve for x
    x = 13,773,959.93/4,718.43
  6. Step 6: Final answer
    x = 2,919.18

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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.