Home / 3,179.09-4,386.99-1,762.66

Finding the Fourth Proportional to 3,179.09, 4,386.99 and 1,762.66

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Solution

The fourth proportional to 3,179.09, 4,386.99 and 1,762.66 is: 2,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.09 : 4,386.99 = 1,762.66 : x
  2. Step 2: Convert to fraction form
    3,179.09/4,386.99 = 1,762.66/x
  3. Step 3: Cross multiply
    3,179.09x = 4,386.99 × 1,762.66
  4. Step 4: Simplify right side
    3,179.09x = 7,732,769.01
  5. Step 5: Solve for x
    x = 7,732,769.01/3,179.09
  6. Step 6: Final answer
    x = 2,432.39

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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.