Home / 3,930.55-5,422.81-2,437.93

Finding the Fourth Proportional to 3,930.55, 5,422.81 and 2,437.93

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Solution

The fourth proportional to 3,930.55, 5,422.81 and 2,437.93 is: 3,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.55 : 5,422.81 = 2,437.93 : x
  2. Step 2: Convert to fraction form
    3,930.55/5,422.81 = 2,437.93/x
  3. Step 3: Cross multiply
    3,930.55x = 5,422.81 × 2,437.93
  4. Step 4: Simplify right side
    3,930.55x = 13,220,431.18
  5. Step 5: Solve for x
    x = 13,220,431.18/3,930.55
  6. Step 6: Final answer
    x = 3,363.51

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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.