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Finding the Fourth Proportional to 4,718.01, 7,078.13 and 4,639.65

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Solution

The fourth proportional to 4,718.01, 7,078.13 and 4,639.65 is: 6,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.01 : 7,078.13 = 4,639.65 : x
  2. Step 2: Convert to fraction form
    4,718.01/7,078.13 = 4,639.65/x
  3. Step 3: Cross multiply
    4,718.01x = 7,078.13 × 4,639.65
  4. Step 4: Simplify right side
    4,718.01x = 32,840,022.66
  5. Step 5: Solve for x
    x = 32,840,022.66/4,718.01
  6. Step 6: Final answer
    x = 6,960.57

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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.