Home / 2,050.66-2,830.88-1,388.58

Finding the Fourth Proportional to 2,050.66, 2,830.88 and 1,388.58

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Solution

The fourth proportional to 2,050.66, 2,830.88 and 1,388.58 is: 1,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,050.66 : 2,830.88 = 1,388.58 : x
  2. Step 2: Convert to fraction form
    2,050.66/2,830.88 = 1,388.58/x
  3. Step 3: Cross multiply
    2,050.66x = 2,830.88 × 1,388.58
  4. Step 4: Simplify right side
    2,050.66x = 3,930,903.35
  5. Step 5: Solve for x
    x = 3,930,903.35/2,050.66
  6. Step 6: Final answer
    x = 1,916.90

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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.