Home / 7,170.40-9,892.74-4,025.92

Finding the Fourth Proportional to 7,170.40, 9,892.74 and 4,025.92

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Solution

The fourth proportional to 7,170.40, 9,892.74 and 4,025.92 is: 5,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.40 : 9,892.74 = 4,025.92 : x
  2. Step 2: Convert to fraction form
    7,170.40/9,892.74 = 4,025.92/x
  3. Step 3: Cross multiply
    7,170.40x = 9,892.74 × 4,025.92
  4. Step 4: Simplify right side
    7,170.40x = 39,827,379.82
  5. Step 5: Solve for x
    x = 39,827,379.82/7,170.40
  6. Step 6: Final answer
    x = 5,554.42

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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.