Home / 6,619.40-9,914.70-4,017.80

Finding the Fourth Proportional to 6,619.40, 9,914.70 and 4,017.80

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Solution

The fourth proportional to 6,619.40, 9,914.70 and 4,017.80 is: 6,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.40 : 9,914.70 = 4,017.80 : x
  2. Step 2: Convert to fraction form
    6,619.40/9,914.70 = 4,017.80/x
  3. Step 3: Cross multiply
    6,619.40x = 9,914.70 × 4,017.80
  4. Step 4: Simplify right side
    6,619.40x = 39,835,281.66
  5. Step 5: Solve for x
    x = 39,835,281.66/6,619.40
  6. Step 6: Final answer
    x = 6,017.96

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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.