Home / 3,730.90-5,140.53-2,786.32

Finding the Fourth Proportional to 3,730.90, 5,140.53 and 2,786.32

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Solution

The fourth proportional to 3,730.90, 5,140.53 and 2,786.32 is: 3,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.90 : 5,140.53 = 2,786.32 : x
  2. Step 2: Convert to fraction form
    3,730.90/5,140.53 = 2,786.32/x
  3. Step 3: Cross multiply
    3,730.90x = 5,140.53 × 2,786.32
  4. Step 4: Simplify right side
    3,730.90x = 14,323,161.55
  5. Step 5: Solve for x
    x = 14,323,161.55/3,730.90
  6. Step 6: Final answer
    x = 3,839.06

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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.