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Finding the Fourth Proportional to 5,087.64, 7,630.54 and 1,800.76

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Solution

The fourth proportional to 5,087.64, 7,630.54 and 1,800.76 is: 2,700.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.64 : 7,630.54 = 1,800.76 : x
  2. Step 2: Convert to fraction form
    5,087.64/7,630.54 = 1,800.76/x
  3. Step 3: Cross multiply
    5,087.64x = 7,630.54 × 1,800.76
  4. Step 4: Simplify right side
    5,087.64x = 13,740,771.21
  5. Step 5: Solve for x
    x = 13,740,771.21/5,087.64
  6. Step 6: Final answer
    x = 2,700.81

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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.