Home / 5,419.46-8,130.32-3,080.54

Finding the Fourth Proportional to 5,419.46, 8,130.32 and 3,080.54

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Solution

The fourth proportional to 5,419.46, 8,130.32 and 3,080.54 is: 4,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.46 : 8,130.32 = 3,080.54 : x
  2. Step 2: Convert to fraction form
    5,419.46/8,130.32 = 3,080.54/x
  3. Step 3: Cross multiply
    5,419.46x = 8,130.32 × 3,080.54
  4. Step 4: Simplify right side
    5,419.46x = 25,045,775.97
  5. Step 5: Solve for x
    x = 25,045,775.97/5,419.46
  6. Step 6: Final answer
    x = 4,621.45

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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.