Home / 3,120.17-4,304.70-2,402.57

Finding the Fourth Proportional to 3,120.17, 4,304.70 and 2,402.57

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Solution

The fourth proportional to 3,120.17, 4,304.70 and 2,402.57 is: 3,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.17 : 4,304.70 = 2,402.57 : x
  2. Step 2: Convert to fraction form
    3,120.17/4,304.70 = 2,402.57/x
  3. Step 3: Cross multiply
    3,120.17x = 4,304.70 × 2,402.57
  4. Step 4: Simplify right side
    3,120.17x = 10,342,360.60
  5. Step 5: Solve for x
    x = 10,342,360.60/3,120.17
  6. Step 6: Final answer
    x = 3,314.68

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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.