Home / 3,946.18-5,445.75-2,177.79

Finding the Fourth Proportional to 3,946.18, 5,445.75 and 2,177.79

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Solution

The fourth proportional to 3,946.18, 5,445.75 and 2,177.79 is: 3,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.18 : 5,445.75 = 2,177.79 : x
  2. Step 2: Convert to fraction form
    3,946.18/5,445.75 = 2,177.79/x
  3. Step 3: Cross multiply
    3,946.18x = 5,445.75 × 2,177.79
  4. Step 4: Simplify right side
    3,946.18x = 11,859,699.89
  5. Step 5: Solve for x
    x = 11,859,699.89/3,946.18
  6. Step 6: Final answer
    x = 3,005.36

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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.