Home / 3,140.28-4,333.48-1,743

Finding the Fourth Proportional to 3,140.28, 4,333.48 and 1,743

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Solution

The fourth proportional to 3,140.28, 4,333.48 and 1,743 is: 2,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.28 : 4,333.48 = 1,743 : x
  2. Step 2: Convert to fraction form
    3,140.28/4,333.48 = 1,743/x
  3. Step 3: Cross multiply
    3,140.28x = 4,333.48 × 1,743
  4. Step 4: Simplify right side
    3,140.28x = 7,553,255.64
  5. Step 5: Solve for x
    x = 7,553,255.64/3,140.28
  6. Step 6: Final answer
    x = 2,405.28

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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.