Home / 3,462.12-4,777.68-1,969.74

Finding the Fourth Proportional to 3,462.12, 4,777.68 and 1,969.74

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Solution

The fourth proportional to 3,462.12, 4,777.68 and 1,969.74 is: 2,718.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.12 : 4,777.68 = 1,969.74 : x
  2. Step 2: Convert to fraction form
    3,462.12/4,777.68 = 1,969.74/x
  3. Step 3: Cross multiply
    3,462.12x = 4,777.68 × 1,969.74
  4. Step 4: Simplify right side
    3,462.12x = 9,410,787.40
  5. Step 5: Solve for x
    x = 9,410,787.40/3,462.12
  6. Step 6: Final answer
    x = 2,718.22

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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.