Home / 3,830.76-5,285.59-2,770.13

Finding the Fourth Proportional to 3,830.76, 5,285.59 and 2,770.13

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Solution

The fourth proportional to 3,830.76, 5,285.59 and 2,770.13 is: 3,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.76 : 5,285.59 = 2,770.13 : x
  2. Step 2: Convert to fraction form
    3,830.76/5,285.59 = 2,770.13/x
  3. Step 3: Cross multiply
    3,830.76x = 5,285.59 × 2,770.13
  4. Step 4: Simplify right side
    3,830.76x = 14,641,777.72
  5. Step 5: Solve for x
    x = 14,641,777.72/3,830.76
  6. Step 6: Final answer
    x = 3,822.16

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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.