Home / 5,687.40-8,516.50-4,812.60

Finding the Fourth Proportional to 5,687.40, 8,516.50 and 4,812.60

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Solution

The fourth proportional to 5,687.40, 8,516.50 and 4,812.60 is: 7,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.40 : 8,516.50 = 4,812.60 : x
  2. Step 2: Convert to fraction form
    5,687.40/8,516.50 = 4,812.60/x
  3. Step 3: Cross multiply
    5,687.40x = 8,516.50 × 4,812.60
  4. Step 4: Simplify right side
    5,687.40x = 40,986,507.90
  5. Step 5: Solve for x
    x = 40,986,507.90/5,687.40
  6. Step 6: Final answer
    x = 7,206.55

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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.