Home / 3,120.52-4,312.02-2,968.66

Finding the Fourth Proportional to 3,120.52, 4,312.02 and 2,968.66

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Solution

The fourth proportional to 3,120.52, 4,312.02 and 2,968.66 is: 4,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.52 : 4,312.02 = 2,968.66 : x
  2. Step 2: Convert to fraction form
    3,120.52/4,312.02 = 2,968.66/x
  3. Step 3: Cross multiply
    3,120.52x = 4,312.02 × 2,968.66
  4. Step 4: Simplify right side
    3,120.52x = 12,800,921.29
  5. Step 5: Solve for x
    x = 12,800,921.29/3,120.52
  6. Step 6: Final answer
    x = 4,102.18

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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.