Home / 2,770.79-4,153.22-1,381.39

Finding the Fourth Proportional to 2,770.79, 4,153.22 and 1,381.39

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Solution

The fourth proportional to 2,770.79, 4,153.22 and 1,381.39 is: 2,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.79 : 4,153.22 = 1,381.39 : x
  2. Step 2: Convert to fraction form
    2,770.79/4,153.22 = 1,381.39/x
  3. Step 3: Cross multiply
    2,770.79x = 4,153.22 × 1,381.39
  4. Step 4: Simplify right side
    2,770.79x = 5,737,188.90
  5. Step 5: Solve for x
    x = 5,737,188.90/2,770.79
  6. Step 6: Final answer
    x = 2,070.60

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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.