Home / 5,681.30-7,840.46-3,291.53

Finding the Fourth Proportional to 5,681.30, 7,840.46 and 3,291.53

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Solution

The fourth proportional to 5,681.30, 7,840.46 and 3,291.53 is: 4,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.30 : 7,840.46 = 3,291.53 : x
  2. Step 2: Convert to fraction form
    5,681.30/7,840.46 = 3,291.53/x
  3. Step 3: Cross multiply
    5,681.30x = 7,840.46 × 3,291.53
  4. Step 4: Simplify right side
    5,681.30x = 25,807,078.33
  5. Step 5: Solve for x
    x = 25,807,078.33/5,681.30
  6. Step 6: Final answer
    x = 4,542.46

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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.