Home / 5,629.77-7,769.61-3,271.86

Finding the Fourth Proportional to 5,629.77, 7,769.61 and 3,271.86

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Solution

The fourth proportional to 5,629.77, 7,769.61 and 3,271.86 is: 4,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.77 : 7,769.61 = 3,271.86 : x
  2. Step 2: Convert to fraction form
    5,629.77/7,769.61 = 3,271.86/x
  3. Step 3: Cross multiply
    5,629.77x = 7,769.61 × 3,271.86
  4. Step 4: Simplify right side
    5,629.77x = 25,421,076.17
  5. Step 5: Solve for x
    x = 25,421,076.17/5,629.77
  6. Step 6: Final answer
    x = 4,515.47

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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.