Home / 4,188.08-6,281.40-1,722.80

Finding the Fourth Proportional to 4,188.08, 6,281.40 and 1,722.80

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Solution

The fourth proportional to 4,188.08, 6,281.40 and 1,722.80 is: 2,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.08 : 6,281.40 = 1,722.80 : x
  2. Step 2: Convert to fraction form
    4,188.08/6,281.40 = 1,722.80/x
  3. Step 3: Cross multiply
    4,188.08x = 6,281.40 × 1,722.80
  4. Step 4: Simplify right side
    4,188.08x = 10,821,595.92
  5. Step 5: Solve for x
    x = 10,821,595.92/4,188.08
  6. Step 6: Final answer
    x = 2,583.90

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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.