Home / 3,455.52-4,767.75-2,747.40

Finding the Fourth Proportional to 3,455.52, 4,767.75 and 2,747.40

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Solution

The fourth proportional to 3,455.52, 4,767.75 and 2,747.40 is: 3,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.52 : 4,767.75 = 2,747.40 : x
  2. Step 2: Convert to fraction form
    3,455.52/4,767.75 = 2,747.40/x
  3. Step 3: Cross multiply
    3,455.52x = 4,767.75 × 2,747.40
  4. Step 4: Simplify right side
    3,455.52x = 13,098,916.35
  5. Step 5: Solve for x
    x = 13,098,916.35/3,455.52
  6. Step 6: Final answer
    x = 3,790.72

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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.