Home / 3,317.40-4,976.90-1,126.14

Finding the Fourth Proportional to 3,317.40, 4,976.90 and 1,126.14

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Solution

The fourth proportional to 3,317.40, 4,976.90 and 1,126.14 is: 1,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.40 : 4,976.90 = 1,126.14 : x
  2. Step 2: Convert to fraction form
    3,317.40/4,976.90 = 1,126.14/x
  3. Step 3: Cross multiply
    3,317.40x = 4,976.90 × 1,126.14
  4. Step 4: Simplify right side
    3,317.40x = 5,604,686.17
  5. Step 5: Solve for x
    x = 5,604,686.17/3,317.40
  6. Step 6: Final answer
    x = 1,689.48

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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.