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Finding the Fourth Proportional to 6,666.65, 9,993.06 and 2,970.62

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Solution

The fourth proportional to 6,666.65, 9,993.06 and 2,970.62 is: 4,452.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.65 : 9,993.06 = 2,970.62 : x
  2. Step 2: Convert to fraction form
    6,666.65/9,993.06 = 2,970.62/x
  3. Step 3: Cross multiply
    6,666.65x = 9,993.06 × 2,970.62
  4. Step 4: Simplify right side
    6,666.65x = 29,685,583.90
  5. Step 5: Solve for x
    x = 29,685,583.90/6,666.65
  6. Step 6: Final answer
    x = 4,452.85

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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.