Home / 1,857.96-2,781.18-1,345.32

Finding the Fourth Proportional to 1,857.96, 2,781.18 and 1,345.32

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Solution

The fourth proportional to 1,857.96, 2,781.18 and 1,345.32 is: 2,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.96 : 2,781.18 = 1,345.32 : x
  2. Step 2: Convert to fraction form
    1,857.96/2,781.18 = 1,345.32/x
  3. Step 3: Cross multiply
    1,857.96x = 2,781.18 × 1,345.32
  4. Step 4: Simplify right side
    1,857.96x = 3,741,577.08
  5. Step 5: Solve for x
    x = 3,741,577.08/1,857.96
  6. Step 6: Final answer
    x = 2,013.81

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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.