Home / 3,698.54-5,102.40-2,126.30

Finding the Fourth Proportional to 3,698.54, 5,102.40 and 2,126.30

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Solution

The fourth proportional to 3,698.54, 5,102.40 and 2,126.30 is: 2,933.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.54 : 5,102.40 = 2,126.30 : x
  2. Step 2: Convert to fraction form
    3,698.54/5,102.40 = 2,126.30/x
  3. Step 3: Cross multiply
    3,698.54x = 5,102.40 × 2,126.30
  4. Step 4: Simplify right side
    3,698.54x = 10,849,233.12
  5. Step 5: Solve for x
    x = 10,849,233.12/3,698.54
  6. Step 6: Final answer
    x = 2,933.38

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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.