Home / 3,142.70-4,337.55-1,816.83

Finding the Fourth Proportional to 3,142.70, 4,337.55 and 1,816.83

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Solution

The fourth proportional to 3,142.70, 4,337.55 and 1,816.83 is: 2,507.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.70 : 4,337.55 = 1,816.83 : x
  2. Step 2: Convert to fraction form
    3,142.70/4,337.55 = 1,816.83/x
  3. Step 3: Cross multiply
    3,142.70x = 4,337.55 × 1,816.83
  4. Step 4: Simplify right side
    3,142.70x = 7,880,590.97
  5. Step 5: Solve for x
    x = 7,880,590.97/3,142.70
  6. Step 6: Final answer
    x = 2,507.59

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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.