Home / 3,140.48-4,335.68-1,962.16

Finding the Fourth Proportional to 3,140.48, 4,335.68 and 1,962.16

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Solution

The fourth proportional to 3,140.48, 4,335.68 and 1,962.16 is: 2,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.48 : 4,335.68 = 1,962.16 : x
  2. Step 2: Convert to fraction form
    3,140.48/4,335.68 = 1,962.16/x
  3. Step 3: Cross multiply
    3,140.48x = 4,335.68 × 1,962.16
  4. Step 4: Simplify right side
    3,140.48x = 8,507,297.87
  5. Step 5: Solve for x
    x = 8,507,297.87/3,140.48
  6. Step 6: Final answer
    x = 2,708.92

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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.