Home / 7,191.21-9,923.50-4,047.60

Finding the Fourth Proportional to 7,191.21, 9,923.50 and 4,047.60

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Solution

The fourth proportional to 7,191.21, 9,923.50 and 4,047.60 is: 5,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.21 : 9,923.50 = 4,047.60 : x
  2. Step 2: Convert to fraction form
    7,191.21/9,923.50 = 4,047.60/x
  3. Step 3: Cross multiply
    7,191.21x = 9,923.50 × 4,047.60
  4. Step 4: Simplify right side
    7,191.21x = 40,166,358.60
  5. Step 5: Solve for x
    x = 40,166,358.60/7,191.21
  6. Step 6: Final answer
    x = 5,585.48

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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.