Home / 1,984.52-2,977.44-1,392.15

Finding the Fourth Proportional to 1,984.52, 2,977.44 and 1,392.15

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Solution

The fourth proportional to 1,984.52, 2,977.44 and 1,392.15 is: 2,088.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.52 : 2,977.44 = 1,392.15 : x
  2. Step 2: Convert to fraction form
    1,984.52/2,977.44 = 1,392.15/x
  3. Step 3: Cross multiply
    1,984.52x = 2,977.44 × 1,392.15
  4. Step 4: Simplify right side
    1,984.52x = 4,145,043.10
  5. Step 5: Solve for x
    x = 4,145,043.10/1,984.52
  6. Step 6: Final answer
    x = 2,088.69

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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.