Home / 5,087.70-7,632.64-1,577.63

Finding the Fourth Proportional to 5,087.70, 7,632.64 and 1,577.63

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Solution

The fourth proportional to 5,087.70, 7,632.64 and 1,577.63 is: 2,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.70 : 7,632.64 = 1,577.63 : x
  2. Step 2: Convert to fraction form
    5,087.70/7,632.64 = 1,577.63/x
  3. Step 3: Cross multiply
    5,087.70x = 7,632.64 × 1,577.63
  4. Step 4: Simplify right side
    5,087.70x = 12,041,481.34
  5. Step 5: Solve for x
    x = 12,041,481.34/5,087.70
  6. Step 6: Final answer
    x = 2,366.78

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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.