Home / 3,143.10-4,337.46-1,816.80

Finding the Fourth Proportional to 3,143.10, 4,337.46 and 1,816.80

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Solution

The fourth proportional to 3,143.10, 4,337.46 and 1,816.80 is: 2,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.10 : 4,337.46 = 1,816.80 : x
  2. Step 2: Convert to fraction form
    3,143.10/4,337.46 = 1,816.80/x
  3. Step 3: Cross multiply
    3,143.10x = 4,337.46 × 1,816.80
  4. Step 4: Simplify right side
    3,143.10x = 7,880,297.33
  5. Step 5: Solve for x
    x = 7,880,297.33/3,143.10
  6. Step 6: Final answer
    x = 2,507.17

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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.