Home / 2,013.32-2,778.18-1,128.92

Finding the Fourth Proportional to 2,013.32, 2,778.18 and 1,128.92

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Solution

The fourth proportional to 2,013.32, 2,778.18 and 1,128.92 is: 1,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.32 : 2,778.18 = 1,128.92 : x
  2. Step 2: Convert to fraction form
    2,013.32/2,778.18 = 1,128.92/x
  3. Step 3: Cross multiply
    2,013.32x = 2,778.18 × 1,128.92
  4. Step 4: Simplify right side
    2,013.32x = 3,136,342.97
  5. Step 5: Solve for x
    x = 3,136,342.97/2,013.32
  6. Step 6: Final answer
    x = 1,557.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.