Home / 4,257.50-6,386.61-1,179.50

Finding the Fourth Proportional to 4,257.50, 6,386.61 and 1,179.50

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Solution

The fourth proportional to 4,257.50, 6,386.61 and 1,179.50 is: 1,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.50 : 6,386.61 = 1,179.50 : x
  2. Step 2: Convert to fraction form
    4,257.50/6,386.61 = 1,179.50/x
  3. Step 3: Cross multiply
    4,257.50x = 6,386.61 × 1,179.50
  4. Step 4: Simplify right side
    4,257.50x = 7,533,006.50
  5. Step 5: Solve for x
    x = 7,533,006.50/4,257.50
  6. Step 6: Final answer
    x = 1,769.35

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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.