Home / 7,881.32-11,820.86-2,950.28

Finding the Fourth Proportional to 7,881.32, 11,820.86 and 2,950.28

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Solution

The fourth proportional to 7,881.32, 11,820.86 and 2,950.28 is: 4,425.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.32 : 11,820.86 = 2,950.28 : x
  2. Step 2: Convert to fraction form
    7,881.32/11,820.86 = 2,950.28/x
  3. Step 3: Cross multiply
    7,881.32x = 11,820.86 × 2,950.28
  4. Step 4: Simplify right side
    7,881.32x = 34,874,846.84
  5. Step 5: Solve for x
    x = 34,874,846.84/7,881.32
  6. Step 6: Final answer
    x = 4,425.00

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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.