Home / 6,554.40-9,830.16-2,172.18

Finding the Fourth Proportional to 6,554.40, 9,830.16 and 2,172.18

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Solution

The fourth proportional to 6,554.40, 9,830.16 and 2,172.18 is: 3,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,554.40 : 9,830.16 = 2,172.18 : x
  2. Step 2: Convert to fraction form
    6,554.40/9,830.16 = 2,172.18/x
  3. Step 3: Cross multiply
    6,554.40x = 9,830.16 × 2,172.18
  4. Step 4: Simplify right side
    6,554.40x = 21,352,876.95
  5. Step 5: Solve for x
    x = 21,352,876.95/6,554.40
  6. Step 6: Final answer
    x = 3,257.79

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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.