Home / 5,454.28-8,180.58-2,990.32

Finding the Fourth Proportional to 5,454.28, 8,180.58 and 2,990.32

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Solution

The fourth proportional to 5,454.28, 8,180.58 and 2,990.32 is: 4,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.28 : 8,180.58 = 2,990.32 : x
  2. Step 2: Convert to fraction form
    5,454.28/8,180.58 = 2,990.32/x
  3. Step 3: Cross multiply
    5,454.28x = 8,180.58 × 2,990.32
  4. Step 4: Simplify right side
    5,454.28x = 24,462,551.99
  5. Step 5: Solve for x
    x = 24,462,551.99/5,454.28
  6. Step 6: Final answer
    x = 4,485.02

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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.