Home / 3,176.06-4,378.63-2,113.87

Finding the Fourth Proportional to 3,176.06, 4,378.63 and 2,113.87

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Solution

The fourth proportional to 3,176.06, 4,378.63 and 2,113.87 is: 2,914.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.06 : 4,378.63 = 2,113.87 : x
  2. Step 2: Convert to fraction form
    3,176.06/4,378.63 = 2,113.87/x
  3. Step 3: Cross multiply
    3,176.06x = 4,378.63 × 2,113.87
  4. Step 4: Simplify right side
    3,176.06x = 9,255,868.80
  5. Step 5: Solve for x
    x = 9,255,868.80/3,176.06
  6. Step 6: Final answer
    x = 2,914.26

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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.