Home / 3,134.20-4,325.36-1,790.20

Finding the Fourth Proportional to 3,134.20, 4,325.36 and 1,790.20

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Solution

The fourth proportional to 3,134.20, 4,325.36 and 1,790.20 is: 2,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.20 : 4,325.36 = 1,790.20 : x
  2. Step 2: Convert to fraction form
    3,134.20/4,325.36 = 1,790.20/x
  3. Step 3: Cross multiply
    3,134.20x = 4,325.36 × 1,790.20
  4. Step 4: Simplify right side
    3,134.20x = 7,743,259.47
  5. Step 5: Solve for x
    x = 7,743,259.47/3,134.20
  6. Step 6: Final answer
    x = 2,470.57

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1.5x scale

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.