Home / 3,818.66-5,269.86-2,140.07

Finding the Fourth Proportional to 3,818.66, 5,269.86 and 2,140.07

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Solution

The fourth proportional to 3,818.66, 5,269.86 and 2,140.07 is: 2,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.66 : 5,269.86 = 2,140.07 : x
  2. Step 2: Convert to fraction form
    3,818.66/5,269.86 = 2,140.07/x
  3. Step 3: Cross multiply
    3,818.66x = 5,269.86 × 2,140.07
  4. Step 4: Simplify right side
    3,818.66x = 11,277,842.94
  5. Step 5: Solve for x
    x = 11,277,842.94/3,818.66
  6. Step 6: Final answer
    x = 2,953.35

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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.