Home / 3,703.78-5,111.27-2,211.40

Finding the Fourth Proportional to 3,703.78, 5,111.27 and 2,211.40

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Solution

The fourth proportional to 3,703.78, 5,111.27 and 2,211.40 is: 3,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.78 : 5,111.27 = 2,211.40 : x
  2. Step 2: Convert to fraction form
    3,703.78/5,111.27 = 2,211.40/x
  3. Step 3: Cross multiply
    3,703.78x = 5,111.27 × 2,211.40
  4. Step 4: Simplify right side
    3,703.78x = 11,303,062.48
  5. Step 5: Solve for x
    x = 11,303,062.48/3,703.78
  6. Step 6: Final answer
    x = 3,051.76

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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.