Home / 3,824.65-5,280.56-2,938.87

Finding the Fourth Proportional to 3,824.65, 5,280.56 and 2,938.87

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Solution

The fourth proportional to 3,824.65, 5,280.56 and 2,938.87 is: 4,057.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,824.65 : 5,280.56 = 2,938.87 : x
  2. Step 2: Convert to fraction form
    3,824.65/5,280.56 = 2,938.87/x
  3. Step 3: Cross multiply
    3,824.65x = 5,280.56 × 2,938.87
  4. Step 4: Simplify right side
    3,824.65x = 15,518,879.37
  5. Step 5: Solve for x
    x = 15,518,879.37/3,824.65
  6. Step 6: Final answer
    x = 4,057.59

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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.