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Finding the Fourth Proportional to 2,446.70, 3,670.05 and 1,214.30

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Solution

The fourth proportional to 2,446.70, 3,670.05 and 1,214.30 is: 1,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.70 : 3,670.05 = 1,214.30 : x
  2. Step 2: Convert to fraction form
    2,446.70/3,670.05 = 1,214.30/x
  3. Step 3: Cross multiply
    2,446.70x = 3,670.05 × 1,214.30
  4. Step 4: Simplify right side
    2,446.70x = 4,456,541.72
  5. Step 5: Solve for x
    x = 4,456,541.72/2,446.70
  6. Step 6: Final answer
    x = 1,821.45

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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.