Home / 5,417.43-8,121.29-1,953.87

Finding the Fourth Proportional to 5,417.43, 8,121.29 and 1,953.87

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Solution

The fourth proportional to 5,417.43, 8,121.29 and 1,953.87 is: 2,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.43 : 8,121.29 = 1,953.87 : x
  2. Step 2: Convert to fraction form
    5,417.43/8,121.29 = 1,953.87/x
  3. Step 3: Cross multiply
    5,417.43x = 8,121.29 × 1,953.87
  4. Step 4: Simplify right side
    5,417.43x = 15,867,935.12
  5. Step 5: Solve for x
    x = 15,867,935.12/5,417.43
  6. Step 6: Final answer
    x = 2,929.05

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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.