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Finding the Fourth Proportional to 7,980.93, 11,970.86 and 3,051.07

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Solution

The fourth proportional to 7,980.93, 11,970.86 and 3,051.07 is: 4,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.93 : 11,970.86 = 3,051.07 : x
  2. Step 2: Convert to fraction form
    7,980.93/11,970.86 = 3,051.07/x
  3. Step 3: Cross multiply
    7,980.93x = 11,970.86 × 3,051.07
  4. Step 4: Simplify right side
    7,980.93x = 36,523,886.64
  5. Step 5: Solve for x
    x = 36,523,886.64/7,980.93
  6. Step 6: Final answer
    x = 4,576.39

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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.