Home / 3,818.72-5,269.68-2,140.10

Finding the Fourth Proportional to 3,818.72, 5,269.68 and 2,140.10

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Solution

The fourth proportional to 3,818.72, 5,269.68 and 2,140.10 is: 2,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.72 : 5,269.68 = 2,140.10 : x
  2. Step 2: Convert to fraction form
    3,818.72/5,269.68 = 2,140.10/x
  3. Step 3: Cross multiply
    3,818.72x = 5,269.68 × 2,140.10
  4. Step 4: Simplify right side
    3,818.72x = 11,277,642.17
  5. Step 5: Solve for x
    x = 11,277,642.17/3,818.72
  6. Step 6: Final answer
    x = 2,953.25

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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.