Home / 3,179.70-4,387.59-1,763.19

Finding the Fourth Proportional to 3,179.70, 4,387.59 and 1,763.19

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Solution

The fourth proportional to 3,179.70, 4,387.59 and 1,763.19 is: 2,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.70 : 4,387.59 = 1,763.19 : x
  2. Step 2: Convert to fraction form
    3,179.70/4,387.59 = 1,763.19/x
  3. Step 3: Cross multiply
    3,179.70x = 4,387.59 × 1,763.19
  4. Step 4: Simplify right side
    3,179.70x = 7,736,154.81
  5. Step 5: Solve for x
    x = 7,736,154.81/3,179.70
  6. Step 6: Final answer
    x = 2,432.98

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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.