Home / 1,859.09-2,785.32-1,126.98

Finding the Fourth Proportional to 1,859.09, 2,785.32 and 1,126.98

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Solution

The fourth proportional to 1,859.09, 2,785.32 and 1,126.98 is: 1,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.09 : 2,785.32 = 1,126.98 : x
  2. Step 2: Convert to fraction form
    1,859.09/2,785.32 = 1,126.98/x
  3. Step 3: Cross multiply
    1,859.09x = 2,785.32 × 1,126.98
  4. Step 4: Simplify right side
    1,859.09x = 3,138,999.93
  5. Step 5: Solve for x
    x = 3,138,999.93/1,859.09
  6. Step 6: Final answer
    x = 1,688.46

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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.