Home / 3,143.69-4,337.96-1,817.82

Finding the Fourth Proportional to 3,143.69, 4,337.96 and 1,817.82

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Solution

The fourth proportional to 3,143.69, 4,337.96 and 1,817.82 is: 2,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.69 : 4,337.96 = 1,817.82 : x
  2. Step 2: Convert to fraction form
    3,143.69/4,337.96 = 1,817.82/x
  3. Step 3: Cross multiply
    3,143.69x = 4,337.96 × 1,817.82
  4. Step 4: Simplify right side
    3,143.69x = 7,885,630.45
  5. Step 5: Solve for x
    x = 7,885,630.45/3,143.69
  6. Step 6: Final answer
    x = 2,508.40

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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.