Home / 3,115.53-4,675.46-1,384.29

Finding the Fourth Proportional to 3,115.53, 4,675.46 and 1,384.29

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Solution

The fourth proportional to 3,115.53, 4,675.46 and 1,384.29 is: 2,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.53 : 4,675.46 = 1,384.29 : x
  2. Step 2: Convert to fraction form
    3,115.53/4,675.46 = 1,384.29/x
  3. Step 3: Cross multiply
    3,115.53x = 4,675.46 × 1,384.29
  4. Step 4: Simplify right side
    3,115.53x = 6,472,185.60
  5. Step 5: Solve for x
    x = 6,472,185.60/3,115.53
  6. Step 6: Final answer
    x = 2,077.39

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1.5x scale

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.