Home / 2,603.69-3,915.46-2,077.80

Finding the Fourth Proportional to 2,603.69, 3,915.46 and 2,077.80

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Solution

The fourth proportional to 2,603.69, 3,915.46 and 2,077.80 is: 3,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.69 : 3,915.46 = 2,077.80 : x
  2. Step 2: Convert to fraction form
    2,603.69/3,915.46 = 2,077.80/x
  3. Step 3: Cross multiply
    2,603.69x = 3,915.46 × 2,077.80
  4. Step 4: Simplify right side
    2,603.69x = 8,135,558.57
  5. Step 5: Solve for x
    x = 8,135,558.57/2,603.69
  6. Step 6: Final answer
    x = 3,124.62

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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.