Home / 6,389.33-8,812.31-4,151.93

Finding the Fourth Proportional to 6,389.33, 8,812.31 and 4,151.93

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Solution

The fourth proportional to 6,389.33, 8,812.31 and 4,151.93 is: 5,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.33 : 8,812.31 = 4,151.93 : x
  2. Step 2: Convert to fraction form
    6,389.33/8,812.31 = 4,151.93/x
  3. Step 3: Cross multiply
    6,389.33x = 8,812.31 × 4,151.93
  4. Step 4: Simplify right side
    6,389.33x = 36,588,029.44
  5. Step 5: Solve for x
    x = 36,588,029.44/6,389.33
  6. Step 6: Final answer
    x = 5,726.43

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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.