Home / 1,949.46-2,693.01-1,555.98

Finding the Fourth Proportional to 1,949.46, 2,693.01 and 1,555.98

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Solution

The fourth proportional to 1,949.46, 2,693.01 and 1,555.98 is: 2,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.46 : 2,693.01 = 1,555.98 : x
  2. Step 2: Convert to fraction form
    1,949.46/2,693.01 = 1,555.98/x
  3. Step 3: Cross multiply
    1,949.46x = 2,693.01 × 1,555.98
  4. Step 4: Simplify right side
    1,949.46x = 4,190,269.70
  5. Step 5: Solve for x
    x = 4,190,269.70/1,949.46
  6. Step 6: Final answer
    x = 2,149.45

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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.