Home / 2,310.88-3,465.12-1,215.04

Finding the Fourth Proportional to 2,310.88, 3,465.12 and 1,215.04

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Solution

The fourth proportional to 2,310.88, 3,465.12 and 1,215.04 is: 1,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.88 : 3,465.12 = 1,215.04 : x
  2. Step 2: Convert to fraction form
    2,310.88/3,465.12 = 1,215.04/x
  3. Step 3: Cross multiply
    2,310.88x = 3,465.12 × 1,215.04
  4. Step 4: Simplify right side
    2,310.88x = 4,210,259.40
  5. Step 5: Solve for x
    x = 4,210,259.40/2,310.88
  6. Step 6: Final answer
    x = 1,821.93

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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.