Home / 2,538.21-3,506.12-2,042.76

Finding the Fourth Proportional to 2,538.21, 3,506.12 and 2,042.76

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Solution

The fourth proportional to 2,538.21, 3,506.12 and 2,042.76 is: 2,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.21 : 3,506.12 = 2,042.76 : x
  2. Step 2: Convert to fraction form
    2,538.21/3,506.12 = 2,042.76/x
  3. Step 3: Cross multiply
    2,538.21x = 3,506.12 × 2,042.76
  4. Step 4: Simplify right side
    2,538.21x = 7,162,161.69
  5. Step 5: Solve for x
    x = 7,162,161.69/2,538.21
  6. Step 6: Final answer
    x = 2,821.74

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Half scale
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Double scale
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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.