Home / 2,929.80-4,416.21-2,760.42

Finding the Fourth Proportional to 2,929.80, 4,416.21 and 2,760.42

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Solution

The fourth proportional to 2,929.80, 4,416.21 and 2,760.42 is: 4,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.80 : 4,416.21 = 2,760.42 : x
  2. Step 2: Convert to fraction form
    2,929.80/4,416.21 = 2,760.42/x
  3. Step 3: Cross multiply
    2,929.80x = 4,416.21 × 2,760.42
  4. Step 4: Simplify right side
    2,929.80x = 12,190,594.41
  5. Step 5: Solve for x
    x = 12,190,594.41/2,929.80
  6. Step 6: Final answer
    x = 4,160.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.