Home / 3,400.72-4,695.76-2,771.34

Finding the Fourth Proportional to 3,400.72, 4,695.76 and 2,771.34

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Solution

The fourth proportional to 3,400.72, 4,695.76 and 2,771.34 is: 3,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.72 : 4,695.76 = 2,771.34 : x
  2. Step 2: Convert to fraction form
    3,400.72/4,695.76 = 2,771.34/x
  3. Step 3: Cross multiply
    3,400.72x = 4,695.76 × 2,771.34
  4. Step 4: Simplify right side
    3,400.72x = 13,013,547.52
  5. Step 5: Solve for x
    x = 13,013,547.52/3,400.72
  6. Step 6: Final answer
    x = 3,826.70

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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.