Home / 2,815.47-4,224.51-1,354.64

Finding the Fourth Proportional to 2,815.47, 4,224.51 and 1,354.64

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Solution

The fourth proportional to 2,815.47, 4,224.51 and 1,354.64 is: 2,032.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.47 : 4,224.51 = 1,354.64 : x
  2. Step 2: Convert to fraction form
    2,815.47/4,224.51 = 1,354.64/x
  3. Step 3: Cross multiply
    2,815.47x = 4,224.51 × 1,354.64
  4. Step 4: Simplify right side
    2,815.47x = 5,722,669.10
  5. Step 5: Solve for x
    x = 5,722,669.10/2,815.47
  6. Step 6: Final answer
    x = 2,032.58

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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.