Home / 3,120.52-4,304.10-2,124.28

Finding the Fourth Proportional to 3,120.52, 4,304.10 and 2,124.28

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Solution

The fourth proportional to 3,120.52, 4,304.10 and 2,124.28 is: 2,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.52 : 4,304.10 = 2,124.28 : x
  2. Step 2: Convert to fraction form
    3,120.52/4,304.10 = 2,124.28/x
  3. Step 3: Cross multiply
    3,120.52x = 4,304.10 × 2,124.28
  4. Step 4: Simplify right side
    3,120.52x = 9,143,113.55
  5. Step 5: Solve for x
    x = 9,143,113.55/3,120.52
  6. Step 6: Final answer
    x = 2,930.00

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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.