Home / 5,145.14-7,718.06-2,547.38

Finding the Fourth Proportional to 5,145.14, 7,718.06 and 2,547.38

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Solution

The fourth proportional to 5,145.14, 7,718.06 and 2,547.38 is: 3,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.14 : 7,718.06 = 2,547.38 : x
  2. Step 2: Convert to fraction form
    5,145.14/7,718.06 = 2,547.38/x
  3. Step 3: Cross multiply
    5,145.14x = 7,718.06 × 2,547.38
  4. Step 4: Simplify right side
    5,145.14x = 19,660,831.68
  5. Step 5: Solve for x
    x = 19,660,831.68/5,145.14
  6. Step 6: Final answer
    x = 3,821.24

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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.