Home / 7,721.02-11,582.88-2,455.95

Finding the Fourth Proportional to 7,721.02, 11,582.88 and 2,455.95

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Solution

The fourth proportional to 7,721.02, 11,582.88 and 2,455.95 is: 3,684.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.02 : 11,582.88 = 2,455.95 : x
  2. Step 2: Convert to fraction form
    7,721.02/11,582.88 = 2,455.95/x
  3. Step 3: Cross multiply
    7,721.02x = 11,582.88 × 2,455.95
  4. Step 4: Simplify right side
    7,721.02x = 28,446,961.86
  5. Step 5: Solve for x
    x = 28,446,961.86/7,721.02
  6. Step 6: Final answer
    x = 3,684.36

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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.