Home / 5,282.80-7,291.56-3,187.60

Finding the Fourth Proportional to 5,282.80, 7,291.56 and 3,187.60

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Solution

The fourth proportional to 5,282.80, 7,291.56 and 3,187.60 is: 4,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.80 : 7,291.56 = 3,187.60 : x
  2. Step 2: Convert to fraction form
    5,282.80/7,291.56 = 3,187.60/x
  3. Step 3: Cross multiply
    5,282.80x = 7,291.56 × 3,187.60
  4. Step 4: Simplify right side
    5,282.80x = 23,242,576.66
  5. Step 5: Solve for x
    x = 23,242,576.66/5,282.80
  6. Step 6: Final answer
    x = 4,399.67

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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.