Home / 3,938.79-5,432.22-2,366.58

Finding the Fourth Proportional to 3,938.79, 5,432.22 and 2,366.58

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Solution

The fourth proportional to 3,938.79, 5,432.22 and 2,366.58 is: 3,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.79 : 5,432.22 = 2,366.58 : x
  2. Step 2: Convert to fraction form
    3,938.79/5,432.22 = 2,366.58/x
  3. Step 3: Cross multiply
    3,938.79x = 5,432.22 × 2,366.58
  4. Step 4: Simplify right side
    3,938.79x = 12,855,783.21
  5. Step 5: Solve for x
    x = 12,855,783.21/3,938.79
  6. Step 6: Final answer
    x = 3,263.89

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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.