Home / 4,731.20-7,096.80-3,856.40

Finding the Fourth Proportional to 4,731.20, 7,096.80 and 3,856.40

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Solution

The fourth proportional to 4,731.20, 7,096.80 and 3,856.40 is: 5,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,731.20 : 7,096.80 = 3,856.40 : x
  2. Step 2: Convert to fraction form
    4,731.20/7,096.80 = 3,856.40/x
  3. Step 3: Cross multiply
    4,731.20x = 7,096.80 × 3,856.40
  4. Step 4: Simplify right side
    4,731.20x = 27,368,099.52
  5. Step 5: Solve for x
    x = 27,368,099.52/4,731.20
  6. Step 6: Final answer
    x = 5,784.60

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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.