Home / 3,718.55-5,131.43-2,225.58

Finding the Fourth Proportional to 3,718.55, 5,131.43 and 2,225.58

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Solution

The fourth proportional to 3,718.55, 5,131.43 and 2,225.58 is: 3,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.55 : 5,131.43 = 2,225.58 : x
  2. Step 2: Convert to fraction form
    3,718.55/5,131.43 = 2,225.58/x
  3. Step 3: Cross multiply
    3,718.55x = 5,131.43 × 2,225.58
  4. Step 4: Simplify right side
    3,718.55x = 11,420,407.98
  5. Step 5: Solve for x
    x = 11,420,407.98/3,718.55
  6. Step 6: Final answer
    x = 3,071.20

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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.