Home / 3,681.20-5,522.30-1,340.90

Finding the Fourth Proportional to 3,681.20, 5,522.30 and 1,340.90

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Solution

The fourth proportional to 3,681.20, 5,522.30 and 1,340.90 is: 2,011.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.20 : 5,522.30 = 1,340.90 : x
  2. Step 2: Convert to fraction form
    3,681.20/5,522.30 = 1,340.90/x
  3. Step 3: Cross multiply
    3,681.20x = 5,522.30 × 1,340.90
  4. Step 4: Simplify right side
    3,681.20x = 7,404,852.07
  5. Step 5: Solve for x
    x = 7,404,852.07/3,681.20
  6. Step 6: Final answer
    x = 2,011.53

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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.