Home / 5,282.45-7,923.68-1,386.86

Finding the Fourth Proportional to 5,282.45, 7,923.68 and 1,386.86

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Solution

The fourth proportional to 5,282.45, 7,923.68 and 1,386.86 is: 2,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.45 : 7,923.68 = 1,386.86 : x
  2. Step 2: Convert to fraction form
    5,282.45/7,923.68 = 1,386.86/x
  3. Step 3: Cross multiply
    5,282.45x = 7,923.68 × 1,386.86
  4. Step 4: Simplify right side
    5,282.45x = 10,989,034.84
  5. Step 5: Solve for x
    x = 10,989,034.84/5,282.45
  6. Step 6: Final answer
    x = 2,080.29

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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.