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Finding the Fourth Proportional to 3,885.79, 5,360.55 and 2,627.28

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Solution

The fourth proportional to 3,885.79, 5,360.55 and 2,627.28 is: 3,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.79 : 5,360.55 = 2,627.28 : x
  2. Step 2: Convert to fraction form
    3,885.79/5,360.55 = 2,627.28/x
  3. Step 3: Cross multiply
    3,885.79x = 5,360.55 × 2,627.28
  4. Step 4: Simplify right side
    3,885.79x = 14,083,665.80
  5. Step 5: Solve for x
    x = 14,083,665.80/3,885.79
  6. Step 6: Final answer
    x = 3,624.40

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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.