Home / 3,405.66-4,701.61-2,647.77

Finding the Fourth Proportional to 3,405.66, 4,701.61 and 2,647.77

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Solution

The fourth proportional to 3,405.66, 4,701.61 and 2,647.77 is: 3,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.66 : 4,701.61 = 2,647.77 : x
  2. Step 2: Convert to fraction form
    3,405.66/4,701.61 = 2,647.77/x
  3. Step 3: Cross multiply
    3,405.66x = 4,701.61 × 2,647.77
  4. Step 4: Simplify right side
    3,405.66x = 12,448,781.91
  5. Step 5: Solve for x
    x = 12,448,781.91/3,405.66
  6. Step 6: Final answer
    x = 3,655.32

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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.