Home / 7,980.57-11,970.72-2,433.96

Finding the Fourth Proportional to 7,980.57, 11,970.72 and 2,433.96

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Solution

The fourth proportional to 7,980.57, 11,970.72 and 2,433.96 is: 3,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.57 : 11,970.72 = 2,433.96 : x
  2. Step 2: Convert to fraction form
    7,980.57/11,970.72 = 2,433.96/x
  3. Step 3: Cross multiply
    7,980.57x = 11,970.72 × 2,433.96
  4. Step 4: Simplify right side
    7,980.57x = 29,136,253.65
  5. Step 5: Solve for x
    x = 29,136,253.65/7,980.57
  6. Step 6: Final answer
    x = 3,650.90

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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.