Home / 3,143.63-4,338.59-1,817.34

Finding the Fourth Proportional to 3,143.63, 4,338.59 and 1,817.34

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Solution

The fourth proportional to 3,143.63, 4,338.59 and 1,817.34 is: 2,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.63 : 4,338.59 = 1,817.34 : x
  2. Step 2: Convert to fraction form
    3,143.63/4,338.59 = 1,817.34/x
  3. Step 3: Cross multiply
    3,143.63x = 4,338.59 × 1,817.34
  4. Step 4: Simplify right side
    3,143.63x = 7,884,684.06
  5. Step 5: Solve for x
    x = 7,884,684.06/3,143.63
  6. Step 6: Final answer
    x = 2,508.15

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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.