Home / 3,426.16-4,730.76-2,678.80

Finding the Fourth Proportional to 3,426.16, 4,730.76 and 2,678.80

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Solution

The fourth proportional to 3,426.16, 4,730.76 and 2,678.80 is: 3,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.16 : 4,730.76 = 2,678.80 : x
  2. Step 2: Convert to fraction form
    3,426.16/4,730.76 = 2,678.80/x
  3. Step 3: Cross multiply
    3,426.16x = 4,730.76 × 2,678.80
  4. Step 4: Simplify right side
    3,426.16x = 12,672,759.89
  5. Step 5: Solve for x
    x = 12,672,759.89/3,426.16
  6. Step 6: Final answer
    x = 3,698.82

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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.