Home / 4,225.40-6,338.10-3,642.20

Finding the Fourth Proportional to 4,225.40, 6,338.10 and 3,642.20

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Solution

The fourth proportional to 4,225.40, 6,338.10 and 3,642.20 is: 5,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,225.40 : 6,338.10 = 3,642.20 : x
  2. Step 2: Convert to fraction form
    4,225.40/6,338.10 = 3,642.20/x
  3. Step 3: Cross multiply
    4,225.40x = 6,338.10 × 3,642.20
  4. Step 4: Simplify right side
    4,225.40x = 23,084,627.82
  5. Step 5: Solve for x
    x = 23,084,627.82/4,225.40
  6. Step 6: Final answer
    x = 5,463.30

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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.