Home / 7,721.36-11,582.03-1,877.93

Finding the Fourth Proportional to 7,721.36, 11,582.03 and 1,877.93

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Solution

The fourth proportional to 7,721.36, 11,582.03 and 1,877.93 is: 2,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.36 : 11,582.03 = 1,877.93 : x
  2. Step 2: Convert to fraction form
    7,721.36/11,582.03 = 1,877.93/x
  3. Step 3: Cross multiply
    7,721.36x = 11,582.03 × 1,877.93
  4. Step 4: Simplify right side
    7,721.36x = 21,750,174.30
  5. Step 5: Solve for x
    x = 21,750,174.30/7,721.36
  6. Step 6: Final answer
    x = 2,816.89

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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.