Home / 5,681.30-7,840.80-3,325.41

Finding the Fourth Proportional to 5,681.30, 7,840.80 and 3,325.41

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Solution

The fourth proportional to 5,681.30, 7,840.80 and 3,325.41 is: 4,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.30 : 7,840.80 = 3,325.41 : x
  2. Step 2: Convert to fraction form
    5,681.30/7,840.80 = 3,325.41/x
  3. Step 3: Cross multiply
    5,681.30x = 7,840.80 × 3,325.41
  4. Step 4: Simplify right side
    5,681.30x = 26,073,883.19
  5. Step 5: Solve for x
    x = 26,073,883.19/5,681.30
  6. Step 6: Final answer
    x = 4,589.42

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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.