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Finding the Fourth Proportional to 3,703.01, 5,110.71 and 2,130.80

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Solution

The fourth proportional to 3,703.01, 5,110.71 and 2,130.80 is: 2,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.01 : 5,110.71 = 2,130.80 : x
  2. Step 2: Convert to fraction form
    3,703.01/5,110.71 = 2,130.80/x
  3. Step 3: Cross multiply
    3,703.01x = 5,110.71 × 2,130.80
  4. Step 4: Simplify right side
    3,703.01x = 10,889,900.87
  5. Step 5: Solve for x
    x = 10,889,900.87/3,703.01
  6. Step 6: Final answer
    x = 2,940.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.