Home / 1,946.55-2,686.46-1,084.28

Finding the Fourth Proportional to 1,946.55, 2,686.46 and 1,084.28

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Solution

The fourth proportional to 1,946.55, 2,686.46 and 1,084.28 is: 1,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.55 : 2,686.46 = 1,084.28 : x
  2. Step 2: Convert to fraction form
    1,946.55/2,686.46 = 1,084.28/x
  3. Step 3: Cross multiply
    1,946.55x = 2,686.46 × 1,084.28
  4. Step 4: Simplify right side
    1,946.55x = 2,912,874.85
  5. Step 5: Solve for x
    x = 2,912,874.85/1,946.55
  6. Step 6: Final answer
    x = 1,496.43

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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.