Home / 4,386.05-6,581.12-1,920.54

Finding the Fourth Proportional to 4,386.05, 6,581.12 and 1,920.54

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Solution

The fourth proportional to 4,386.05, 6,581.12 and 1,920.54 is: 2,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.05 : 6,581.12 = 1,920.54 : x
  2. Step 2: Convert to fraction form
    4,386.05/6,581.12 = 1,920.54/x
  3. Step 3: Cross multiply
    4,386.05x = 6,581.12 × 1,920.54
  4. Step 4: Simplify right side
    4,386.05x = 12,639,294.60
  5. Step 5: Solve for x
    x = 12,639,294.60/4,386.05
  6. Step 6: Final answer
    x = 2,881.71

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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.