Home / 2,623.01-3,930.86-2,178.32

Finding the Fourth Proportional to 2,623.01, 3,930.86 and 2,178.32

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Solution

The fourth proportional to 2,623.01, 3,930.86 and 2,178.32 is: 3,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.01 : 3,930.86 = 2,178.32 : x
  2. Step 2: Convert to fraction form
    2,623.01/3,930.86 = 2,178.32/x
  3. Step 3: Cross multiply
    2,623.01x = 3,930.86 × 2,178.32
  4. Step 4: Simplify right side
    2,623.01x = 8,562,656.75
  5. Step 5: Solve for x
    x = 8,562,656.75/2,623.01
  6. Step 6: Final answer
    x = 3,264.45

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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.