Home / 3,136.25-4,702.95-1,494.78

Finding the Fourth Proportional to 3,136.25, 4,702.95 and 1,494.78

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Solution

The fourth proportional to 3,136.25, 4,702.95 and 1,494.78 is: 2,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.25 : 4,702.95 = 1,494.78 : x
  2. Step 2: Convert to fraction form
    3,136.25/4,702.95 = 1,494.78/x
  3. Step 3: Cross multiply
    3,136.25x = 4,702.95 × 1,494.78
  4. Step 4: Simplify right side
    3,136.25x = 7,029,875.60
  5. Step 5: Solve for x
    x = 7,029,875.60/3,136.25
  6. Step 6: Final answer
    x = 2,241.49

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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.