Home / 7,722.18-11,583.09-1,878.84

Finding the Fourth Proportional to 7,722.18, 11,583.09 and 1,878.84

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Solution

The fourth proportional to 7,722.18, 11,583.09 and 1,878.84 is: 2,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.18 : 11,583.09 = 1,878.84 : x
  2. Step 2: Convert to fraction form
    7,722.18/11,583.09 = 1,878.84/x
  3. Step 3: Cross multiply
    7,722.18x = 11,583.09 × 1,878.84
  4. Step 4: Simplify right side
    7,722.18x = 21,762,772.82
  5. Step 5: Solve for x
    x = 21,762,772.82/7,722.18
  6. Step 6: Final answer
    x = 2,818.22

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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.