Home / 3,777.84-5,214.24-2,380.32

Finding the Fourth Proportional to 3,777.84, 5,214.24 and 2,380.32

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Solution

The fourth proportional to 3,777.84, 5,214.24 and 2,380.32 is: 3,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.84 : 5,214.24 = 2,380.32 : x
  2. Step 2: Convert to fraction form
    3,777.84/5,214.24 = 2,380.32/x
  3. Step 3: Cross multiply
    3,777.84x = 5,214.24 × 2,380.32
  4. Step 4: Simplify right side
    3,777.84x = 12,411,559.76
  5. Step 5: Solve for x
    x = 12,411,559.76/3,777.84
  6. Step 6: Final answer
    x = 3,285.36

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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.