Home / 7,456.49-11,184.62-1,909.79

Finding the Fourth Proportional to 7,456.49, 11,184.62 and 1,909.79

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Solution

The fourth proportional to 7,456.49, 11,184.62 and 1,909.79 is: 2,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.49 : 11,184.62 = 1,909.79 : x
  2. Step 2: Convert to fraction form
    7,456.49/11,184.62 = 1,909.79/x
  3. Step 3: Cross multiply
    7,456.49x = 11,184.62 × 1,909.79
  4. Step 4: Simplify right side
    7,456.49x = 21,360,275.43
  5. Step 5: Solve for x
    x = 21,360,275.43/7,456.49
  6. Step 6: Final answer
    x = 2,864.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.