Home / 7,212.25-9,952.72-4,068.19

Finding the Fourth Proportional to 7,212.25, 9,952.72 and 4,068.19

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Solution

The fourth proportional to 7,212.25, 9,952.72 and 4,068.19 is: 5,614.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.25 : 9,952.72 = 4,068.19 : x
  2. Step 2: Convert to fraction form
    7,212.25/9,952.72 = 4,068.19/x
  3. Step 3: Cross multiply
    7,212.25x = 9,952.72 × 4,068.19
  4. Step 4: Simplify right side
    7,212.25x = 40,489,555.98
  5. Step 5: Solve for x
    x = 40,489,555.98/7,212.25
  6. Step 6: Final answer
    x = 5,614.00

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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.