Home / 7,421.88-10,243.36-4,235.17

Finding the Fourth Proportional to 7,421.88, 10,243.36 and 4,235.17

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Solution

The fourth proportional to 7,421.88, 10,243.36 and 4,235.17 is: 5,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.88 : 10,243.36 = 4,235.17 : x
  2. Step 2: Convert to fraction form
    7,421.88/10,243.36 = 4,235.17/x
  3. Step 3: Cross multiply
    7,421.88x = 10,243.36 × 4,235.17
  4. Step 4: Simplify right side
    7,421.88x = 43,382,375.40
  5. Step 5: Solve for x
    x = 43,382,375.40/7,421.88
  6. Step 6: Final answer
    x = 5,845.20

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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.