Home / 1,800.09-2,698.52-931.77

Finding the Fourth Proportional to 1,800.09, 2,698.52 and 931.77

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Solution

The fourth proportional to 1,800.09, 2,698.52 and 931.77 is: 1,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.09 : 2,698.52 = 931.77 : x
  2. Step 2: Convert to fraction form
    1,800.09/2,698.52 = 931.77/x
  3. Step 3: Cross multiply
    1,800.09x = 2,698.52 × 931.77
  4. Step 4: Simplify right side
    1,800.09x = 2,514,395.32
  5. Step 5: Solve for x
    x = 2,514,395.32/1,800.09
  6. Step 6: Final answer
    x = 1,396.82

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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.