Home / 3,406.52-4,705.62-2,669.78

Finding the Fourth Proportional to 3,406.52, 4,705.62 and 2,669.78

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Solution

The fourth proportional to 3,406.52, 4,705.62 and 2,669.78 is: 3,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.52 : 4,705.62 = 2,669.78 : x
  2. Step 2: Convert to fraction form
    3,406.52/4,705.62 = 2,669.78/x
  3. Step 3: Cross multiply
    3,406.52x = 4,705.62 × 2,669.78
  4. Step 4: Simplify right side
    3,406.52x = 12,562,970.16
  5. Step 5: Solve for x
    x = 12,562,970.16/3,406.52
  6. Step 6: Final answer
    x = 3,687.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.