Home / 6,433.28-8,880.76-3,780.84

Finding the Fourth Proportional to 6,433.28, 8,880.76 and 3,780.84

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Solution

The fourth proportional to 6,433.28, 8,880.76 and 3,780.84 is: 5,219.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.28 : 8,880.76 = 3,780.84 : x
  2. Step 2: Convert to fraction form
    6,433.28/8,880.76 = 3,780.84/x
  3. Step 3: Cross multiply
    6,433.28x = 8,880.76 × 3,780.84
  4. Step 4: Simplify right side
    6,433.28x = 33,576,732.64
  5. Step 5: Solve for x
    x = 33,576,732.64/6,433.28
  6. Step 6: Final answer
    x = 5,219.22

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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.