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Finding the Fourth Proportional to 5,803.89, 8,009.40 and 3,151.30

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Solution

The fourth proportional to 5,803.89, 8,009.40 and 3,151.30 is: 4,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.89 : 8,009.40 = 3,151.30 : x
  2. Step 2: Convert to fraction form
    5,803.89/8,009.40 = 3,151.30/x
  3. Step 3: Cross multiply
    5,803.89x = 8,009.40 × 3,151.30
  4. Step 4: Simplify right side
    5,803.89x = 25,240,022.22
  5. Step 5: Solve for x
    x = 25,240,022.22/5,803.89
  6. Step 6: Final answer
    x = 4,348.81

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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.