Home / 7,786.84-10,749.54-4,805.20

Finding the Fourth Proportional to 7,786.84, 10,749.54 and 4,805.20

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Solution

The fourth proportional to 7,786.84, 10,749.54 and 4,805.20 is: 6,633.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.84 : 10,749.54 = 4,805.20 : x
  2. Step 2: Convert to fraction form
    7,786.84/10,749.54 = 4,805.20/x
  3. Step 3: Cross multiply
    7,786.84x = 10,749.54 × 4,805.20
  4. Step 4: Simplify right side
    7,786.84x = 51,653,689.61
  5. Step 5: Solve for x
    x = 51,653,689.61/7,786.84
  6. Step 6: Final answer
    x = 6,633.46

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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.