Home / 5,775.20-8,662.80-4,025.60

Finding the Fourth Proportional to 5,775.20, 8,662.80 and 4,025.60

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Solution

The fourth proportional to 5,775.20, 8,662.80 and 4,025.60 is: 6,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.20 : 8,662.80 = 4,025.60 : x
  2. Step 2: Convert to fraction form
    5,775.20/8,662.80 = 4,025.60/x
  3. Step 3: Cross multiply
    5,775.20x = 8,662.80 × 4,025.60
  4. Step 4: Simplify right side
    5,775.20x = 34,872,967.68
  5. Step 5: Solve for x
    x = 34,872,967.68/5,775.20
  6. Step 6: Final answer
    x = 6,038.40

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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.