Home / 7,378.16-11,061.93-3,480.44

Finding the Fourth Proportional to 7,378.16, 11,061.93 and 3,480.44

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Solution

The fourth proportional to 7,378.16, 11,061.93 and 3,480.44 is: 5,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.16 : 11,061.93 = 3,480.44 : x
  2. Step 2: Convert to fraction form
    7,378.16/11,061.93 = 3,480.44/x
  3. Step 3: Cross multiply
    7,378.16x = 11,061.93 × 3,480.44
  4. Step 4: Simplify right side
    7,378.16x = 38,500,383.65
  5. Step 5: Solve for x
    x = 38,500,383.65/7,378.16
  6. Step 6: Final answer
    x = 5,218.16

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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.