Home / 5,516.46-8,275.50-1,620.36

Finding the Fourth Proportional to 5,516.46, 8,275.50 and 1,620.36

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Solution

The fourth proportional to 5,516.46, 8,275.50 and 1,620.36 is: 2,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.46 : 8,275.50 = 1,620.36 : x
  2. Step 2: Convert to fraction form
    5,516.46/8,275.50 = 1,620.36/x
  3. Step 3: Cross multiply
    5,516.46x = 8,275.50 × 1,620.36
  4. Step 4: Simplify right side
    5,516.46x = 13,409,289.18
  5. Step 5: Solve for x
    x = 13,409,289.18/5,516.46
  6. Step 6: Final answer
    x = 2,430.78

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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.