Home / 3,417.80-5,126.70-1,078.02

Finding the Fourth Proportional to 3,417.80, 5,126.70 and 1,078.02

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Solution

The fourth proportional to 3,417.80, 5,126.70 and 1,078.02 is: 1,617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.80 : 5,126.70 = 1,078.02 : x
  2. Step 2: Convert to fraction form
    3,417.80/5,126.70 = 1,078.02/x
  3. Step 3: Cross multiply
    3,417.80x = 5,126.70 × 1,078.02
  4. Step 4: Simplify right side
    3,417.80x = 5,526,685.13
  5. Step 5: Solve for x
    x = 5,526,685.13/3,417.80
  6. Step 6: Final answer
    x = 1,617.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.