Home / 4,179.84-6,267.36-1,257.28

Finding the Fourth Proportional to 4,179.84, 6,267.36 and 1,257.28

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Solution

The fourth proportional to 4,179.84, 6,267.36 and 1,257.28 is: 1,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.84 : 6,267.36 = 1,257.28 : x
  2. Step 2: Convert to fraction form
    4,179.84/6,267.36 = 1,257.28/x
  3. Step 3: Cross multiply
    4,179.84x = 6,267.36 × 1,257.28
  4. Step 4: Simplify right side
    4,179.84x = 7,879,826.38
  5. Step 5: Solve for x
    x = 7,879,826.38/4,179.84
  6. Step 6: Final answer
    x = 1,885.20

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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.