Home / 2,312.03-3,465.65-1,078.43

Finding the Fourth Proportional to 2,312.03, 3,465.65 and 1,078.43

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Solution

The fourth proportional to 2,312.03, 3,465.65 and 1,078.43 is: 1,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.03 : 3,465.65 = 1,078.43 : x
  2. Step 2: Convert to fraction form
    2,312.03/3,465.65 = 1,078.43/x
  3. Step 3: Cross multiply
    2,312.03x = 3,465.65 × 1,078.43
  4. Step 4: Simplify right side
    2,312.03x = 3,737,460.93
  5. Step 5: Solve for x
    x = 3,737,460.93/2,312.03
  6. Step 6: Final answer
    x = 1,616.53

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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.