Home / 2,026.78-3,037.60-987.02

Finding the Fourth Proportional to 2,026.78, 3,037.60 and 987.02

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Solution

The fourth proportional to 2,026.78, 3,037.60 and 987.02 is: 1,479.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.78 : 3,037.60 = 987.02 : x
  2. Step 2: Convert to fraction form
    2,026.78/3,037.60 = 987.02/x
  3. Step 3: Cross multiply
    2,026.78x = 3,037.60 × 987.02
  4. Step 4: Simplify right side
    2,026.78x = 2,998,171.95
  5. Step 5: Solve for x
    x = 2,998,171.95/2,026.78
  6. Step 6: Final answer
    x = 1,479.28

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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.