Home / 7,215.90-9,960.21-4,232.94

Finding the Fourth Proportional to 7,215.90, 9,960.21 and 4,232.94

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Solution

The fourth proportional to 7,215.90, 9,960.21 and 4,232.94 is: 5,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.90 : 9,960.21 = 4,232.94 : x
  2. Step 2: Convert to fraction form
    7,215.90/9,960.21 = 4,232.94/x
  3. Step 3: Cross multiply
    7,215.90x = 9,960.21 × 4,232.94
  4. Step 4: Simplify right side
    7,215.90x = 42,160,971.32
  5. Step 5: Solve for x
    x = 42,160,971.32/7,215.90
  6. Step 6: Final answer
    x = 5,842.79

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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.