Home / 5,890.43-8,128.70-3,237.78

Finding the Fourth Proportional to 5,890.43, 8,128.70 and 3,237.78

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Solution

The fourth proportional to 5,890.43, 8,128.70 and 3,237.78 is: 4,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.43 : 8,128.70 = 3,237.78 : x
  2. Step 2: Convert to fraction form
    5,890.43/8,128.70 = 3,237.78/x
  3. Step 3: Cross multiply
    5,890.43x = 8,128.70 × 3,237.78
  4. Step 4: Simplify right side
    5,890.43x = 26,318,980.86
  5. Step 5: Solve for x
    x = 26,318,980.86/5,890.43
  6. Step 6: Final answer
    x = 4,468.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.