Home / 4,109.79-6,155.80-2,157.89

Finding the Fourth Proportional to 4,109.79, 6,155.80 and 2,157.89

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Solution

The fourth proportional to 4,109.79, 6,155.80 and 2,157.89 is: 3,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.79 : 6,155.80 = 2,157.89 : x
  2. Step 2: Convert to fraction form
    4,109.79/6,155.80 = 2,157.89/x
  3. Step 3: Cross multiply
    4,109.79x = 6,155.80 × 2,157.89
  4. Step 4: Simplify right side
    4,109.79x = 13,283,537.71
  5. Step 5: Solve for x
    x = 13,283,537.71/4,109.79
  6. Step 6: Final answer
    x = 3,232.17

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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.