Home / 4,386.39-6,581.81-1,921.23

Finding the Fourth Proportional to 4,386.39, 6,581.81 and 1,921.23

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Solution

The fourth proportional to 4,386.39, 6,581.81 and 1,921.23 is: 2,882.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.39 : 6,581.81 = 1,921.23 : x
  2. Step 2: Convert to fraction form
    4,386.39/6,581.81 = 1,921.23/x
  3. Step 3: Cross multiply
    4,386.39x = 6,581.81 × 1,921.23
  4. Step 4: Simplify right side
    4,386.39x = 12,645,161.22
  5. Step 5: Solve for x
    x = 12,645,161.22/4,386.39
  6. Step 6: Final answer
    x = 2,882.82

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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.