Home / 3,168.16-4,750.72-1,869.28

Finding the Fourth Proportional to 3,168.16, 4,750.72 and 1,869.28

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Solution

The fourth proportional to 3,168.16, 4,750.72 and 1,869.28 is: 2,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.16 : 4,750.72 = 1,869.28 : x
  2. Step 2: Convert to fraction form
    3,168.16/4,750.72 = 1,869.28/x
  3. Step 3: Cross multiply
    3,168.16x = 4,750.72 × 1,869.28
  4. Step 4: Simplify right side
    3,168.16x = 8,880,425.88
  5. Step 5: Solve for x
    x = 8,880,425.88/3,168.16
  6. Step 6: Final answer
    x = 2,803.02

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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.