Home / 3,315.46-4,963.32-2,143.19

Finding the Fourth Proportional to 3,315.46, 4,963.32 and 2,143.19

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Solution

The fourth proportional to 3,315.46, 4,963.32 and 2,143.19 is: 3,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.46 : 4,963.32 = 2,143.19 : x
  2. Step 2: Convert to fraction form
    3,315.46/4,963.32 = 2,143.19/x
  3. Step 3: Cross multiply
    3,315.46x = 4,963.32 × 2,143.19
  4. Step 4: Simplify right side
    3,315.46x = 10,637,337.79
  5. Step 5: Solve for x
    x = 10,637,337.79/3,315.46
  6. Step 6: Final answer
    x = 3,208.40

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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.