Home / 3,122.64-4,681.22-1,176.21

Finding the Fourth Proportional to 3,122.64, 4,681.22 and 1,176.21

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Solution

The fourth proportional to 3,122.64, 4,681.22 and 1,176.21 is: 1,763.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.64 : 4,681.22 = 1,176.21 : x
  2. Step 2: Convert to fraction form
    3,122.64/4,681.22 = 1,176.21/x
  3. Step 3: Cross multiply
    3,122.64x = 4,681.22 × 1,176.21
  4. Step 4: Simplify right side
    3,122.64x = 5,506,091.90
  5. Step 5: Solve for x
    x = 5,506,091.90/3,122.64
  6. Step 6: Final answer
    x = 1,763.28

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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.