Home / 5,289.40-7,305.60-3,517.84

Finding the Fourth Proportional to 5,289.40, 7,305.60 and 3,517.84

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Solution

The fourth proportional to 5,289.40, 7,305.60 and 3,517.84 is: 4,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.40 : 7,305.60 = 3,517.84 : x
  2. Step 2: Convert to fraction form
    5,289.40/7,305.60 = 3,517.84/x
  3. Step 3: Cross multiply
    5,289.40x = 7,305.60 × 3,517.84
  4. Step 4: Simplify right side
    5,289.40x = 25,699,931.90
  5. Step 5: Solve for x
    x = 25,699,931.90/5,289.40
  6. Step 6: Final answer
    x = 4,858.76

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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.