Home / 7,166.28-9,890.40-4,022.47

Finding the Fourth Proportional to 7,166.28, 9,890.40 and 4,022.47

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Solution

The fourth proportional to 7,166.28, 9,890.40 and 4,022.47 is: 5,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.28 : 9,890.40 = 4,022.47 : x
  2. Step 2: Convert to fraction form
    7,166.28/9,890.40 = 4,022.47/x
  3. Step 3: Cross multiply
    7,166.28x = 9,890.40 × 4,022.47
  4. Step 4: Simplify right side
    7,166.28x = 39,783,837.29
  5. Step 5: Solve for x
    x = 39,783,837.29/7,166.28
  6. Step 6: Final answer
    x = 5,551.53

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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.