Home / 7,352.40-11,009.16-3,879.12

Finding the Fourth Proportional to 7,352.40, 11,009.16 and 3,879.12

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Solution

The fourth proportional to 7,352.40, 11,009.16 and 3,879.12 is: 5,808.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.40 : 11,009.16 = 3,879.12 : x
  2. Step 2: Convert to fraction form
    7,352.40/11,009.16 = 3,879.12/x
  3. Step 3: Cross multiply
    7,352.40x = 11,009.16 × 3,879.12
  4. Step 4: Simplify right side
    7,352.40x = 42,705,852.74
  5. Step 5: Solve for x
    x = 42,705,852.74/7,352.40
  6. Step 6: Final answer
    x = 5,808.42

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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.