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Finding the Fourth Proportional to 1,825.30, 2,737.92 and 670.78

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Solution

The fourth proportional to 1,825.30, 2,737.92 and 670.78 is: 1,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.30 : 2,737.92 = 670.78 : x
  2. Step 2: Convert to fraction form
    1,825.30/2,737.92 = 670.78/x
  3. Step 3: Cross multiply
    1,825.30x = 2,737.92 × 670.78
  4. Step 4: Simplify right side
    1,825.30x = 1,836,541.98
  5. Step 5: Solve for x
    x = 1,836,541.98/1,825.30
  6. Step 6: Final answer
    x = 1,006.16

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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.