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Finding the Fourth Proportional to 2,045.90, 3,070.62 and 814.18

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Solution

The fourth proportional to 2,045.90, 3,070.62 and 814.18 is: 1,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.90 : 3,070.62 = 814.18 : x
  2. Step 2: Convert to fraction form
    2,045.90/3,070.62 = 814.18/x
  3. Step 3: Cross multiply
    2,045.90x = 3,070.62 × 814.18
  4. Step 4: Simplify right side
    2,045.90x = 2,500,037.39
  5. Step 5: Solve for x
    x = 2,500,037.39/2,045.90
  6. Step 6: Final answer
    x = 1,221.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.