Home / 3,455.32-4,768.18-1,963.20

Finding the Fourth Proportional to 3,455.32, 4,768.18 and 1,963.20

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Solution

The fourth proportional to 3,455.32, 4,768.18 and 1,963.20 is: 2,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.32 : 4,768.18 = 1,963.20 : x
  2. Step 2: Convert to fraction form
    3,455.32/4,768.18 = 1,963.20/x
  3. Step 3: Cross multiply
    3,455.32x = 4,768.18 × 1,963.20
  4. Step 4: Simplify right side
    3,455.32x = 9,360,890.98
  5. Step 5: Solve for x
    x = 9,360,890.98/3,455.32
  6. Step 6: Final answer
    x = 2,709.12

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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.