Home / 7,182.56-9,911.96-4,200.05

Finding the Fourth Proportional to 7,182.56, 9,911.96 and 4,200.05

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Solution

The fourth proportional to 7,182.56, 9,911.96 and 4,200.05 is: 5,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.56 : 9,911.96 = 4,200.05 : x
  2. Step 2: Convert to fraction form
    7,182.56/9,911.96 = 4,200.05/x
  3. Step 3: Cross multiply
    7,182.56x = 9,911.96 × 4,200.05
  4. Step 4: Simplify right side
    7,182.56x = 41,630,657.04
  5. Step 5: Solve for x
    x = 41,630,657.04/7,182.56
  6. Step 6: Final answer
    x = 5,796.07

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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.