Home / 1,791.02-2,689.60-1,612.64

Finding the Fourth Proportional to 1,791.02, 2,689.60 and 1,612.64

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Solution

The fourth proportional to 1,791.02, 2,689.60 and 1,612.64 is: 2,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.02 : 2,689.60 = 1,612.64 : x
  2. Step 2: Convert to fraction form
    1,791.02/2,689.60 = 1,612.64/x
  3. Step 3: Cross multiply
    1,791.02x = 2,689.60 × 1,612.64
  4. Step 4: Simplify right side
    1,791.02x = 4,337,356.54
  5. Step 5: Solve for x
    x = 4,337,356.54/1,791.02
  6. Step 6: Final answer
    x = 2,421.72

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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.