Home / 7,784.06-10,741.84-4,247.20

Finding the Fourth Proportional to 7,784.06, 10,741.84 and 4,247.20

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Solution

The fourth proportional to 7,784.06, 10,741.84 and 4,247.20 is: 5,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.06 : 10,741.84 = 4,247.20 : x
  2. Step 2: Convert to fraction form
    7,784.06/10,741.84 = 4,247.20/x
  3. Step 3: Cross multiply
    7,784.06x = 10,741.84 × 4,247.20
  4. Step 4: Simplify right side
    7,784.06x = 45,622,742.85
  5. Step 5: Solve for x
    x = 45,622,742.85/7,784.06
  6. Step 6: Final answer
    x = 5,861.05

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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.