Home / 5,156.63-7,734.87-1,261.07

Finding the Fourth Proportional to 5,156.63, 7,734.87 and 1,261.07

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Solution

The fourth proportional to 5,156.63, 7,734.87 and 1,261.07 is: 1,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.63 : 7,734.87 = 1,261.07 : x
  2. Step 2: Convert to fraction form
    5,156.63/7,734.87 = 1,261.07/x
  3. Step 3: Cross multiply
    5,156.63x = 7,734.87 × 1,261.07
  4. Step 4: Simplify right side
    5,156.63x = 9,754,212.51
  5. Step 5: Solve for x
    x = 9,754,212.51/5,156.63
  6. Step 6: Final answer
    x = 1,891.59

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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.