Home / 3,684.42-5,084.57-2,888.70

Finding the Fourth Proportional to 3,684.42, 5,084.57 and 2,888.70

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Solution

The fourth proportional to 3,684.42, 5,084.57 and 2,888.70 is: 3,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.42 : 5,084.57 = 2,888.70 : x
  2. Step 2: Convert to fraction form
    3,684.42/5,084.57 = 2,888.70/x
  3. Step 3: Cross multiply
    3,684.42x = 5,084.57 × 2,888.70
  4. Step 4: Simplify right side
    3,684.42x = 14,687,785.51
  5. Step 5: Solve for x
    x = 14,687,785.51/3,684.42
  6. Step 6: Final answer
    x = 3,986.46

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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.