Home / 2,455.72-3,684.66-1,068.40

Finding the Fourth Proportional to 2,455.72, 3,684.66 and 1,068.40

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Solution

The fourth proportional to 2,455.72, 3,684.66 and 1,068.40 is: 1,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.72 : 3,684.66 = 1,068.40 : x
  2. Step 2: Convert to fraction form
    2,455.72/3,684.66 = 1,068.40/x
  3. Step 3: Cross multiply
    2,455.72x = 3,684.66 × 1,068.40
  4. Step 4: Simplify right side
    2,455.72x = 3,936,690.74
  5. Step 5: Solve for x
    x = 3,936,690.74/2,455.72
  6. Step 6: Final answer
    x = 1,603.07

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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.