Home / 5,243.42-7,236.16-2,885.64

Finding the Fourth Proportional to 5,243.42, 7,236.16 and 2,885.64

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Solution

The fourth proportional to 5,243.42, 7,236.16 and 2,885.64 is: 3,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.42 : 7,236.16 = 2,885.64 : x
  2. Step 2: Convert to fraction form
    5,243.42/7,236.16 = 2,885.64/x
  3. Step 3: Cross multiply
    5,243.42x = 7,236.16 × 2,885.64
  4. Step 4: Simplify right side
    5,243.42x = 20,880,952.74
  5. Step 5: Solve for x
    x = 20,880,952.74/5,243.42
  6. Step 6: Final answer
    x = 3,982.32

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Half scale
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Double scale
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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.