Home / 3,445.63-5,166.65-1,689.86

Finding the Fourth Proportional to 3,445.63, 5,166.65 and 1,689.86

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Solution

The fourth proportional to 3,445.63, 5,166.65 and 1,689.86 is: 2,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.63 : 5,166.65 = 1,689.86 : x
  2. Step 2: Convert to fraction form
    3,445.63/5,166.65 = 1,689.86/x
  3. Step 3: Cross multiply
    3,445.63x = 5,166.65 × 1,689.86
  4. Step 4: Simplify right side
    3,445.63x = 8,730,932.31
  5. Step 5: Solve for x
    x = 8,730,932.31/3,445.63
  6. Step 6: Final answer
    x = 2,533.92

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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.