Home / 4,153.12-6,228.78-1,687.30

Finding the Fourth Proportional to 4,153.12, 6,228.78 and 1,687.30

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Solution

The fourth proportional to 4,153.12, 6,228.78 and 1,687.30 is: 2,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,153.12 : 6,228.78 = 1,687.30 : x
  2. Step 2: Convert to fraction form
    4,153.12/6,228.78 = 1,687.30/x
  3. Step 3: Cross multiply
    4,153.12x = 6,228.78 × 1,687.30
  4. Step 4: Simplify right side
    4,153.12x = 10,509,820.49
  5. Step 5: Solve for x
    x = 10,509,820.49/4,153.12
  6. Step 6: Final answer
    x = 2,530.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.