Home / 1,863.14-2,570.86-1,200.90

Finding the Fourth Proportional to 1,863.14, 2,570.86 and 1,200.90

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Solution

The fourth proportional to 1,863.14, 2,570.86 and 1,200.90 is: 1,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.14 : 2,570.86 = 1,200.90 : x
  2. Step 2: Convert to fraction form
    1,863.14/2,570.86 = 1,200.90/x
  3. Step 3: Cross multiply
    1,863.14x = 2,570.86 × 1,200.90
  4. Step 4: Simplify right side
    1,863.14x = 3,087,345.77
  5. Step 5: Solve for x
    x = 3,087,345.77/1,863.14
  6. Step 6: Final answer
    x = 1,657.07

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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.