Home / 2,919.16-4,386.30-2,193.40

Finding the Fourth Proportional to 2,919.16, 4,386.30 and 2,193.40

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Solution

The fourth proportional to 2,919.16, 4,386.30 and 2,193.40 is: 3,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.16 : 4,386.30 = 2,193.40 : x
  2. Step 2: Convert to fraction form
    2,919.16/4,386.30 = 2,193.40/x
  3. Step 3: Cross multiply
    2,919.16x = 4,386.30 × 2,193.40
  4. Step 4: Simplify right side
    2,919.16x = 9,620,910.42
  5. Step 5: Solve for x
    x = 9,620,910.42/2,919.16
  6. Step 6: Final answer
    x = 3,295.78

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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.