Home / 4,325.20-6,485.40-1,725.20

Finding the Fourth Proportional to 4,325.20, 6,485.40 and 1,725.20

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Solution

The fourth proportional to 4,325.20, 6,485.40 and 1,725.20 is: 2,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325.20 : 6,485.40 = 1,725.20 : x
  2. Step 2: Convert to fraction form
    4,325.20/6,485.40 = 1,725.20/x
  3. Step 3: Cross multiply
    4,325.20x = 6,485.40 × 1,725.20
  4. Step 4: Simplify right side
    4,325.20x = 11,188,612.08
  5. Step 5: Solve for x
    x = 11,188,612.08/4,325.20
  6. Step 6: Final answer
    x = 2,586.84

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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.