Home / 3,140.35-4,333.70-1,962.10

Finding the Fourth Proportional to 3,140.35, 4,333.70 and 1,962.10

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Solution

The fourth proportional to 3,140.35, 4,333.70 and 1,962.10 is: 2,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.35 : 4,333.70 = 1,962.10 : x
  2. Step 2: Convert to fraction form
    3,140.35/4,333.70 = 1,962.10/x
  3. Step 3: Cross multiply
    3,140.35x = 4,333.70 × 1,962.10
  4. Step 4: Simplify right side
    3,140.35x = 8,503,132.13
  5. Step 5: Solve for x
    x = 8,503,132.13/3,140.35
  6. Step 6: Final answer
    x = 2,707.70

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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.