Home / 5,172.08-7,756.36-1,708.48

Finding the Fourth Proportional to 5,172.08, 7,756.36 and 1,708.48

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Solution

The fourth proportional to 5,172.08, 7,756.36 and 1,708.48 is: 2,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.08 : 7,756.36 = 1,708.48 : x
  2. Step 2: Convert to fraction form
    5,172.08/7,756.36 = 1,708.48/x
  3. Step 3: Cross multiply
    5,172.08x = 7,756.36 × 1,708.48
  4. Step 4: Simplify right side
    5,172.08x = 13,251,585.93
  5. Step 5: Solve for x
    x = 13,251,585.93/5,172.08
  6. Step 6: Final answer
    x = 2,562.14

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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.