Home / 5,384.60-8,076.93-1,686.55

Finding the Fourth Proportional to 5,384.60, 8,076.93 and 1,686.55

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Solution

The fourth proportional to 5,384.60, 8,076.93 and 1,686.55 is: 2,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.60 : 8,076.93 = 1,686.55 : x
  2. Step 2: Convert to fraction form
    5,384.60/8,076.93 = 1,686.55/x
  3. Step 3: Cross multiply
    5,384.60x = 8,076.93 × 1,686.55
  4. Step 4: Simplify right side
    5,384.60x = 13,622,105.91
  5. Step 5: Solve for x
    x = 13,622,105.91/5,384.60
  6. Step 6: Final answer
    x = 2,529.83

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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.