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Finding the Fourth Proportional to 4,640.07, 6,960.41 and 1,866.74

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Solution

The fourth proportional to 4,640.07, 6,960.41 and 1,866.74 is: 2,800.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.07 : 6,960.41 = 1,866.74 : x
  2. Step 2: Convert to fraction form
    4,640.07/6,960.41 = 1,866.74/x
  3. Step 3: Cross multiply
    4,640.07x = 6,960.41 × 1,866.74
  4. Step 4: Simplify right side
    4,640.07x = 12,993,275.76
  5. Step 5: Solve for x
    x = 12,993,275.76/4,640.07
  6. Step 6: Final answer
    x = 2,800.23

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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.