Home / 7,809.29-10,776.91-4,272.43

Finding the Fourth Proportional to 7,809.29, 10,776.91 and 4,272.43

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Solution

The fourth proportional to 7,809.29, 10,776.91 and 4,272.43 is: 5,895.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.29 : 10,776.91 = 4,272.43 : x
  2. Step 2: Convert to fraction form
    7,809.29/10,776.91 = 4,272.43/x
  3. Step 3: Cross multiply
    7,809.29x = 10,776.91 × 4,272.43
  4. Step 4: Simplify right side
    7,809.29x = 46,043,545.29
  5. Step 5: Solve for x
    x = 46,043,545.29/7,809.29
  6. Step 6: Final answer
    x = 5,895.99

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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.