Home / 3,937.70-5,429.51-2,941.29

Finding the Fourth Proportional to 3,937.70, 5,429.51 and 2,941.29

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Solution

The fourth proportional to 3,937.70, 5,429.51 and 2,941.29 is: 4,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.70 : 5,429.51 = 2,941.29 : x
  2. Step 2: Convert to fraction form
    3,937.70/5,429.51 = 2,941.29/x
  3. Step 3: Cross multiply
    3,937.70x = 5,429.51 × 2,941.29
  4. Step 4: Simplify right side
    3,937.70x = 15,969,748.76
  5. Step 5: Solve for x
    x = 15,969,748.76/3,937.70
  6. Step 6: Final answer
    x = 4,055.61

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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.