Home / 3,577.38-4,938.63-2,778.91

Finding the Fourth Proportional to 3,577.38, 4,938.63 and 2,778.91

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Solution

The fourth proportional to 3,577.38, 4,938.63 and 2,778.91 is: 3,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.38 : 4,938.63 = 2,778.91 : x
  2. Step 2: Convert to fraction form
    3,577.38/4,938.63 = 2,778.91/x
  3. Step 3: Cross multiply
    3,577.38x = 4,938.63 × 2,778.91
  4. Step 4: Simplify right side
    3,577.38x = 13,724,024.89
  5. Step 5: Solve for x
    x = 13,724,024.89/3,577.38
  6. Step 6: Final answer
    x = 3,836.34

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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.