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Finding the Fourth Proportional to 4,543.40, 6,816.70 and 4,383.40

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Solution

The fourth proportional to 4,543.40, 6,816.70 and 4,383.40 is: 6,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,543.40 : 6,816.70 = 4,383.40 : x
  2. Step 2: Convert to fraction form
    4,543.40/6,816.70 = 4,383.40/x
  3. Step 3: Cross multiply
    4,543.40x = 6,816.70 × 4,383.40
  4. Step 4: Simplify right side
    4,543.40x = 29,880,322.78
  5. Step 5: Solve for x
    x = 29,880,322.78/4,543.40
  6. Step 6: Final answer
    x = 6,576.64

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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.