Home / 5,330.11-7,980.08-2,825.60

Finding the Fourth Proportional to 5,330.11, 7,980.08 and 2,825.60

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Solution

The fourth proportional to 5,330.11, 7,980.08 and 2,825.60 is: 4,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.11 : 7,980.08 = 2,825.60 : x
  2. Step 2: Convert to fraction form
    5,330.11/7,980.08 = 2,825.60/x
  3. Step 3: Cross multiply
    5,330.11x = 7,980.08 × 2,825.60
  4. Step 4: Simplify right side
    5,330.11x = 22,548,514.05
  5. Step 5: Solve for x
    x = 22,548,514.05/5,330.11
  6. Step 6: Final answer
    x = 4,230.40

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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.