Home / 3,406.86-4,701.65-2,080.35

Finding the Fourth Proportional to 3,406.86, 4,701.65 and 2,080.35

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Solution

The fourth proportional to 3,406.86, 4,701.65 and 2,080.35 is: 2,870.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.86 : 4,701.65 = 2,080.35 : x
  2. Step 2: Convert to fraction form
    3,406.86/4,701.65 = 2,080.35/x
  3. Step 3: Cross multiply
    3,406.86x = 4,701.65 × 2,080.35
  4. Step 4: Simplify right side
    3,406.86x = 9,781,067.18
  5. Step 5: Solve for x
    x = 9,781,067.18/3,406.86
  6. Step 6: Final answer
    x = 2,870.99

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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.