Home / 6,619.86-9,929.88-2,237.31

Finding the Fourth Proportional to 6,619.86, 9,929.88 and 2,237.31

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Solution

The fourth proportional to 6,619.86, 9,929.88 and 2,237.31 is: 3,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.86 : 9,929.88 = 2,237.31 : x
  2. Step 2: Convert to fraction form
    6,619.86/9,929.88 = 2,237.31/x
  3. Step 3: Cross multiply
    6,619.86x = 9,929.88 × 2,237.31
  4. Step 4: Simplify right side
    6,619.86x = 22,216,219.82
  5. Step 5: Solve for x
    x = 22,216,219.82/6,619.86
  6. Step 6: Final answer
    x = 3,356.00

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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.