Home / 5,243.46-7,236.10-2,885.64

Finding the Fourth Proportional to 5,243.46, 7,236.10 and 2,885.64

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Solution

The fourth proportional to 5,243.46, 7,236.10 and 2,885.64 is: 3,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.46 : 7,236.10 = 2,885.64 : x
  2. Step 2: Convert to fraction form
    5,243.46/7,236.10 = 2,885.64/x
  3. Step 3: Cross multiply
    5,243.46x = 7,236.10 × 2,885.64
  4. Step 4: Simplify right side
    5,243.46x = 20,880,779.60
  5. Step 5: Solve for x
    x = 20,880,779.60/5,243.46
  6. Step 6: Final answer
    x = 3,982.25

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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.