Home / 7,218.59-9,960.44-4,385.48

Finding the Fourth Proportional to 7,218.59, 9,960.44 and 4,385.48

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Solution

The fourth proportional to 7,218.59, 9,960.44 and 4,385.48 is: 6,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.59 : 9,960.44 = 4,385.48 : x
  2. Step 2: Convert to fraction form
    7,218.59/9,960.44 = 4,385.48/x
  3. Step 3: Cross multiply
    7,218.59x = 9,960.44 × 4,385.48
  4. Step 4: Simplify right side
    7,218.59x = 43,681,238.68
  5. Step 5: Solve for x
    x = 43,681,238.68/7,218.59
  6. Step 6: Final answer
    x = 6,051.22

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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.