Home / 5,111.58-7,666.65-1,824.20

Finding the Fourth Proportional to 5,111.58, 7,666.65 and 1,824.20

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Solution

The fourth proportional to 5,111.58, 7,666.65 and 1,824.20 is: 2,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.58 : 7,666.65 = 1,824.20 : x
  2. Step 2: Convert to fraction form
    5,111.58/7,666.65 = 1,824.20/x
  3. Step 3: Cross multiply
    5,111.58x = 7,666.65 × 1,824.20
  4. Step 4: Simplify right side
    5,111.58x = 13,985,464.60
  5. Step 5: Solve for x
    x = 13,985,464.60/5,111.58
  6. Step 6: Final answer
    x = 2,736.04

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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.