Home / 6,983.88-9,637.75-3,840.07

Finding the Fourth Proportional to 6,983.88, 9,637.75 and 3,840.07

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Solution

The fourth proportional to 6,983.88, 9,637.75 and 3,840.07 is: 5,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.88 : 9,637.75 = 3,840.07 : x
  2. Step 2: Convert to fraction form
    6,983.88/9,637.75 = 3,840.07/x
  3. Step 3: Cross multiply
    6,983.88x = 9,637.75 × 3,840.07
  4. Step 4: Simplify right side
    6,983.88x = 37,009,586.45
  5. Step 5: Solve for x
    x = 37,009,586.45/6,983.88
  6. Step 6: Final answer
    x = 5,299.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.