Home / 4,920.12-6,786.27-2,929.14

Finding the Fourth Proportional to 4,920.12, 6,786.27 and 2,929.14

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Solution

The fourth proportional to 4,920.12, 6,786.27 and 2,929.14 is: 4,040.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.12 : 6,786.27 = 2,929.14 : x
  2. Step 2: Convert to fraction form
    4,920.12/6,786.27 = 2,929.14/x
  3. Step 3: Cross multiply
    4,920.12x = 6,786.27 × 2,929.14
  4. Step 4: Simplify right side
    4,920.12x = 19,877,934.91
  5. Step 5: Solve for x
    x = 19,877,934.91/4,920.12
  6. Step 6: Final answer
    x = 4,040.13

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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.