Home / 4,977.60-7,467.09-1,689.81

Finding the Fourth Proportional to 4,977.60, 7,467.09 and 1,689.81

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Solution

The fourth proportional to 4,977.60, 7,467.09 and 1,689.81 is: 2,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.60 : 7,467.09 = 1,689.81 : x
  2. Step 2: Convert to fraction form
    4,977.60/7,467.09 = 1,689.81/x
  3. Step 3: Cross multiply
    4,977.60x = 7,467.09 × 1,689.81
  4. Step 4: Simplify right side
    4,977.60x = 12,617,963.35
  5. Step 5: Solve for x
    x = 12,617,963.35/4,977.60
  6. Step 6: Final answer
    x = 2,534.95

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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.