Home / 5,385.69-8,076.44-1,686.93

Finding the Fourth Proportional to 5,385.69, 8,076.44 and 1,686.93

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Solution

The fourth proportional to 5,385.69, 8,076.44 and 1,686.93 is: 2,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.69 : 8,076.44 = 1,686.93 : x
  2. Step 2: Convert to fraction form
    5,385.69/8,076.44 = 1,686.93/x
  3. Step 3: Cross multiply
    5,385.69x = 8,076.44 × 1,686.93
  4. Step 4: Simplify right side
    5,385.69x = 13,624,362.86
  5. Step 5: Solve for x
    x = 13,624,362.86/5,385.69
  6. Step 6: Final answer
    x = 2,529.73

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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.