Home / 7,219.48-9,961.94-4,387.47

Finding the Fourth Proportional to 7,219.48, 9,961.94 and 4,387.47

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Solution

The fourth proportional to 7,219.48, 9,961.94 and 4,387.47 is: 6,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.48 : 9,961.94 = 4,387.47 : x
  2. Step 2: Convert to fraction form
    7,219.48/9,961.94 = 4,387.47/x
  3. Step 3: Cross multiply
    7,219.48x = 9,961.94 × 4,387.47
  4. Step 4: Simplify right side
    7,219.48x = 43,707,661.82
  5. Step 5: Solve for x
    x = 43,707,661.82/7,219.48
  6. Step 6: Final answer
    x = 6,054.13

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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.