Home / 7,840.48-11,760.67-1,997.55

Finding the Fourth Proportional to 7,840.48, 11,760.67 and 1,997.55

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Solution

The fourth proportional to 7,840.48, 11,760.67 and 1,997.55 is: 2,996.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.48 : 11,760.67 = 1,997.55 : x
  2. Step 2: Convert to fraction form
    7,840.48/11,760.67 = 1,997.55/x
  3. Step 3: Cross multiply
    7,840.48x = 11,760.67 × 1,997.55
  4. Step 4: Simplify right side
    7,840.48x = 23,492,526.36
  5. Step 5: Solve for x
    x = 23,492,526.36/7,840.48
  6. Step 6: Final answer
    x = 2,996.31

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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.