Home / 5,315.53-7,969.39-2,681.74

Finding the Fourth Proportional to 5,315.53, 7,969.39 and 2,681.74

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Solution

The fourth proportional to 5,315.53, 7,969.39 and 2,681.74 is: 4,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.53 : 7,969.39 = 2,681.74 : x
  2. Step 2: Convert to fraction form
    5,315.53/7,969.39 = 2,681.74/x
  3. Step 3: Cross multiply
    5,315.53x = 7,969.39 × 2,681.74
  4. Step 4: Simplify right side
    5,315.53x = 21,371,831.94
  5. Step 5: Solve for x
    x = 21,371,831.94/5,315.53
  6. Step 6: Final answer
    x = 4,020.64

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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.