Home / 7,480.18-11,218.65-2,800

Finding the Fourth Proportional to 7,480.18, 11,218.65 and 2,800

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Solution

The fourth proportional to 7,480.18, 11,218.65 and 2,800 is: 4,199.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.18 : 11,218.65 = 2,800 : x
  2. Step 2: Convert to fraction form
    7,480.18/11,218.65 = 2,800/x
  3. Step 3: Cross multiply
    7,480.18x = 11,218.65 × 2,800
  4. Step 4: Simplify right side
    7,480.18x = 31,412,220
  5. Step 5: Solve for x
    x = 31,412,220/7,480.18
  6. Step 6: Final answer
    x = 4,199.39

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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.