Home / 7,186.72-10,777.95-2,803.12

Finding the Fourth Proportional to 7,186.72, 10,777.95 and 2,803.12

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Solution

The fourth proportional to 7,186.72, 10,777.95 and 2,803.12 is: 4,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.72 : 10,777.95 = 2,803.12 : x
  2. Step 2: Convert to fraction form
    7,186.72/10,777.95 = 2,803.12/x
  3. Step 3: Cross multiply
    7,186.72x = 10,777.95 × 2,803.12
  4. Step 4: Simplify right side
    7,186.72x = 30,211,887.20
  5. Step 5: Solve for x
    x = 30,211,887.20/7,186.72
  6. Step 6: Final answer
    x = 4,203.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.