Home / 4,807.20-7,211.60-1,885.60

Finding the Fourth Proportional to 4,807.20, 7,211.60 and 1,885.60

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Solution

The fourth proportional to 4,807.20, 7,211.60 and 1,885.60 is: 2,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.20 : 7,211.60 = 1,885.60 : x
  2. Step 2: Convert to fraction form
    4,807.20/7,211.60 = 1,885.60/x
  3. Step 3: Cross multiply
    4,807.20x = 7,211.60 × 1,885.60
  4. Step 4: Simplify right side
    4,807.20x = 13,598,192.96
  5. Step 5: Solve for x
    x = 13,598,192.96/4,807.20
  6. Step 6: Final answer
    x = 2,828.71

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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.