Home / 5,025.60-7,538.40-4,190.40

Finding the Fourth Proportional to 5,025.60, 7,538.40 and 4,190.40

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Solution

The fourth proportional to 5,025.60, 7,538.40 and 4,190.40 is: 6,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,025.60 : 7,538.40 = 4,190.40 : x
  2. Step 2: Convert to fraction form
    5,025.60/7,538.40 = 4,190.40/x
  3. Step 3: Cross multiply
    5,025.60x = 7,538.40 × 4,190.40
  4. Step 4: Simplify right side
    5,025.60x = 31,588,911.36
  5. Step 5: Solve for x
    x = 31,588,911.36/5,025.60
  6. Step 6: Final answer
    x = 6,285.60

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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.