Home / 3,141.40-4,712.10-2,963.20

Finding the Fourth Proportional to 3,141.40, 4,712.10 and 2,963.20

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Solution

The fourth proportional to 3,141.40, 4,712.10 and 2,963.20 is: 4,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.40 : 4,712.10 = 2,963.20 : x
  2. Step 2: Convert to fraction form
    3,141.40/4,712.10 = 2,963.20/x
  3. Step 3: Cross multiply
    3,141.40x = 4,712.10 × 2,963.20
  4. Step 4: Simplify right side
    3,141.40x = 13,962,894.72
  5. Step 5: Solve for x
    x = 13,962,894.72/3,141.40
  6. Step 6: Final answer
    x = 4,444.80

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1.5x scale

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.