Home / 3,125.42-4,302.11-2,830.18

Finding the Fourth Proportional to 3,125.42, 4,302.11 and 2,830.18

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Solution

The fourth proportional to 3,125.42, 4,302.11 and 2,830.18 is: 3,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.42 : 4,302.11 = 2,830.18 : x
  2. Step 2: Convert to fraction form
    3,125.42/4,302.11 = 2,830.18/x
  3. Step 3: Cross multiply
    3,125.42x = 4,302.11 × 2,830.18
  4. Step 4: Simplify right side
    3,125.42x = 12,175,742.00
  5. Step 5: Solve for x
    x = 12,175,742.00/3,125.42
  6. Step 6: Final answer
    x = 3,895.71

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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.