Home / 4,077.45-5,629.50-2,803.45

Finding the Fourth Proportional to 4,077.45, 5,629.50 and 2,803.45

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Solution

The fourth proportional to 4,077.45, 5,629.50 and 2,803.45 is: 3,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.45 : 5,629.50 = 2,803.45 : x
  2. Step 2: Convert to fraction form
    4,077.45/5,629.50 = 2,803.45/x
  3. Step 3: Cross multiply
    4,077.45x = 5,629.50 × 2,803.45
  4. Step 4: Simplify right side
    4,077.45x = 15,782,021.78
  5. Step 5: Solve for x
    x = 15,782,021.78/4,077.45
  6. Step 6: Final answer
    x = 3,870.56

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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.