Home / 2,937.78-4,407.75-1,813.32

Finding the Fourth Proportional to 2,937.78, 4,407.75 and 1,813.32

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Solution

The fourth proportional to 2,937.78, 4,407.75 and 1,813.32 is: 2,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,937.78 : 4,407.75 = 1,813.32 : x
  2. Step 2: Convert to fraction form
    2,937.78/4,407.75 = 1,813.32/x
  3. Step 3: Cross multiply
    2,937.78x = 4,407.75 × 1,813.32
  4. Step 4: Simplify right side
    2,937.78x = 7,992,661.23
  5. Step 5: Solve for x
    x = 7,992,661.23/2,937.78
  6. Step 6: Final answer
    x = 2,720.65

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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.