Home / 7,166.80-9,890.18-4,182.06

Finding the Fourth Proportional to 7,166.80, 9,890.18 and 4,182.06

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Solution

The fourth proportional to 7,166.80, 9,890.18 and 4,182.06 is: 5,771.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.80 : 9,890.18 = 4,182.06 : x
  2. Step 2: Convert to fraction form
    7,166.80/9,890.18 = 4,182.06/x
  3. Step 3: Cross multiply
    7,166.80x = 9,890.18 × 4,182.06
  4. Step 4: Simplify right side
    7,166.80x = 41,361,326.17
  5. Step 5: Solve for x
    x = 41,361,326.17/7,166.80
  6. Step 6: Final answer
    x = 5,771.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.