Home / 7,167.21-9,890.28-4,182.59

Finding the Fourth Proportional to 7,167.21, 9,890.28 and 4,182.59

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Solution

The fourth proportional to 7,167.21, 9,890.28 and 4,182.59 is: 5,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.21 : 9,890.28 = 4,182.59 : x
  2. Step 2: Convert to fraction form
    7,167.21/9,890.28 = 4,182.59/x
  3. Step 3: Cross multiply
    7,167.21x = 9,890.28 × 4,182.59
  4. Step 4: Simplify right side
    7,167.21x = 41,366,936.77
  5. Step 5: Solve for x
    x = 41,366,936.77/7,167.21
  6. Step 6: Final answer
    x = 5,771.69

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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.