Home / 5,146.47-7,718.42-1,983.27

Finding the Fourth Proportional to 5,146.47, 7,718.42 and 1,983.27

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Solution

The fourth proportional to 5,146.47, 7,718.42 and 1,983.27 is: 2,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.47 : 7,718.42 = 1,983.27 : x
  2. Step 2: Convert to fraction form
    5,146.47/7,718.42 = 1,983.27/x
  3. Step 3: Cross multiply
    5,146.47x = 7,718.42 × 1,983.27
  4. Step 4: Simplify right side
    5,146.47x = 15,307,744.74
  5. Step 5: Solve for x
    x = 15,307,744.74/5,146.47
  6. Step 6: Final answer
    x = 2,974.42

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1.5x scale

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.