Home / 5,156.77-7,735.45-1,458.69

Finding the Fourth Proportional to 5,156.77, 7,735.45 and 1,458.69

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Solution

The fourth proportional to 5,156.77, 7,735.45 and 1,458.69 is: 2,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.77 : 7,735.45 = 1,458.69 : x
  2. Step 2: Convert to fraction form
    5,156.77/7,735.45 = 1,458.69/x
  3. Step 3: Cross multiply
    5,156.77x = 7,735.45 × 1,458.69
  4. Step 4: Simplify right side
    5,156.77x = 11,283,585.12
  5. Step 5: Solve for x
    x = 11,283,585.12/5,156.77
  6. Step 6: Final answer
    x = 2,188.11

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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.