Home / 5,420.23-8,131.80-2,300.37

Finding the Fourth Proportional to 5,420.23, 8,131.80 and 2,300.37

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Solution

The fourth proportional to 5,420.23, 8,131.80 and 2,300.37 is: 3,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.23 : 8,131.80 = 2,300.37 : x
  2. Step 2: Convert to fraction form
    5,420.23/8,131.80 = 2,300.37/x
  3. Step 3: Cross multiply
    5,420.23x = 8,131.80 × 2,300.37
  4. Step 4: Simplify right side
    5,420.23x = 18,706,148.77
  5. Step 5: Solve for x
    x = 18,706,148.77/5,420.23
  6. Step 6: Final answer
    x = 3,451.17

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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.