Home / 5,420.13-8,131.05-2,300.16

Finding the Fourth Proportional to 5,420.13, 8,131.05 and 2,300.16

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Solution

The fourth proportional to 5,420.13, 8,131.05 and 2,300.16 is: 3,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.13 : 8,131.05 = 2,300.16 : x
  2. Step 2: Convert to fraction form
    5,420.13/8,131.05 = 2,300.16/x
  3. Step 3: Cross multiply
    5,420.13x = 8,131.05 × 2,300.16
  4. Step 4: Simplify right side
    5,420.13x = 18,702,715.97
  5. Step 5: Solve for x
    x = 18,702,715.97/5,420.13
  6. Step 6: Final answer
    x = 3,450.60

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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.