Home / 7,981.58-11,971.45-3,051.11

Finding the Fourth Proportional to 7,981.58, 11,971.45 and 3,051.11

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Solution

The fourth proportional to 7,981.58, 11,971.45 and 3,051.11 is: 4,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.58 : 11,971.45 = 3,051.11 : x
  2. Step 2: Convert to fraction form
    7,981.58/11,971.45 = 3,051.11/x
  3. Step 3: Cross multiply
    7,981.58x = 11,971.45 × 3,051.11
  4. Step 4: Simplify right side
    7,981.58x = 36,526,210.81
  5. Step 5: Solve for x
    x = 36,526,210.81/7,981.58
  6. Step 6: Final answer
    x = 4,576.31

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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.