Home / 1,863.11-2,570.96-1,116.70

Finding the Fourth Proportional to 1,863.11, 2,570.96 and 1,116.70

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Solution

The fourth proportional to 1,863.11, 2,570.96 and 1,116.70 is: 1,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.11 : 2,570.96 = 1,116.70 : x
  2. Step 2: Convert to fraction form
    1,863.11/2,570.96 = 1,116.70/x
  3. Step 3: Cross multiply
    1,863.11x = 2,570.96 × 1,116.70
  4. Step 4: Simplify right side
    1,863.11x = 2,870,978.18
  5. Step 5: Solve for x
    x = 2,870,978.18/1,863.11
  6. Step 6: Final answer
    x = 1,540.96

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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.