Home / 2,740.61-4,104.76-2,122.44

Finding the Fourth Proportional to 2,740.61, 4,104.76 and 2,122.44

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Solution

The fourth proportional to 2,740.61, 4,104.76 and 2,122.44 is: 3,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.61 : 4,104.76 = 2,122.44 : x
  2. Step 2: Convert to fraction form
    2,740.61/4,104.76 = 2,122.44/x
  3. Step 3: Cross multiply
    2,740.61x = 4,104.76 × 2,122.44
  4. Step 4: Simplify right side
    2,740.61x = 8,712,106.81
  5. Step 5: Solve for x
    x = 8,712,106.81/2,740.61
  6. Step 6: Final answer
    x = 3,178.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.