Home / 3,116.52-4,671.90-1,384.20

Finding the Fourth Proportional to 3,116.52, 4,671.90 and 1,384.20

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Solution

The fourth proportional to 3,116.52, 4,671.90 and 1,384.20 is: 2,075.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.52 : 4,671.90 = 1,384.20 : x
  2. Step 2: Convert to fraction form
    3,116.52/4,671.90 = 1,384.20/x
  3. Step 3: Cross multiply
    3,116.52x = 4,671.90 × 1,384.20
  4. Step 4: Simplify right side
    3,116.52x = 6,466,843.98
  5. Step 5: Solve for x
    x = 6,466,843.98/3,116.52
  6. Step 6: Final answer
    x = 2,075.02

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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.