Home / 2,027.49-3,042.58-987.99

Finding the Fourth Proportional to 2,027.49, 3,042.58 and 987.99

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Solution

The fourth proportional to 2,027.49, 3,042.58 and 987.99 is: 1,482.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.49 : 3,042.58 = 987.99 : x
  2. Step 2: Convert to fraction form
    2,027.49/3,042.58 = 987.99/x
  3. Step 3: Cross multiply
    2,027.49x = 3,042.58 × 987.99
  4. Step 4: Simplify right side
    2,027.49x = 3,006,038.61
  5. Step 5: Solve for x
    x = 3,006,038.61/2,027.49
  6. Step 6: Final answer
    x = 1,482.64

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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.