Home / 5,170.96-7,756.46-1,275.37

Finding the Fourth Proportional to 5,170.96, 7,756.46 and 1,275.37

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Solution

The fourth proportional to 5,170.96, 7,756.46 and 1,275.37 is: 1,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.96 : 7,756.46 = 1,275.37 : x
  2. Step 2: Convert to fraction form
    5,170.96/7,756.46 = 1,275.37/x
  3. Step 3: Cross multiply
    5,170.96x = 7,756.46 × 1,275.37
  4. Step 4: Simplify right side
    5,170.96x = 9,892,335.40
  5. Step 5: Solve for x
    x = 9,892,335.40/5,170.96
  6. Step 6: Final answer
    x = 1,913.06

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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.