Home / 5,433.20-8,160.74-5,280.08

Finding the Fourth Proportional to 5,433.20, 8,160.74 and 5,280.08

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Solution

The fourth proportional to 5,433.20, 8,160.74 and 5,280.08 is: 7,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,433.20 : 8,160.74 = 5,280.08 : x
  2. Step 2: Convert to fraction form
    5,433.20/8,160.74 = 5,280.08/x
  3. Step 3: Cross multiply
    5,433.20x = 8,160.74 × 5,280.08
  4. Step 4: Simplify right side
    5,433.20x = 43,089,360.06
  5. Step 5: Solve for x
    x = 43,089,360.06/5,433.20
  6. Step 6: Final answer
    x = 7,930.75

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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.