Home / 3,490.74-5,220.36-3,103.02

Finding the Fourth Proportional to 3,490.74, 5,220.36 and 3,103.02

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Solution

The fourth proportional to 3,490.74, 5,220.36 and 3,103.02 is: 4,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.74 : 5,220.36 = 3,103.02 : x
  2. Step 2: Convert to fraction form
    3,490.74/5,220.36 = 3,103.02/x
  3. Step 3: Cross multiply
    3,490.74x = 5,220.36 × 3,103.02
  4. Step 4: Simplify right side
    3,490.74x = 16,198,881.49
  5. Step 5: Solve for x
    x = 16,198,881.49/3,490.74
  6. Step 6: Final answer
    x = 4,640.53

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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.