Home / 5,141.76-7,095.68-2,783.92

Finding the Fourth Proportional to 5,141.76, 7,095.68 and 2,783.92

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Solution

The fourth proportional to 5,141.76, 7,095.68 and 2,783.92 is: 3,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.76 : 7,095.68 = 2,783.92 : x
  2. Step 2: Convert to fraction form
    5,141.76/7,095.68 = 2,783.92/x
  3. Step 3: Cross multiply
    5,141.76x = 7,095.68 × 2,783.92
  4. Step 4: Simplify right side
    5,141.76x = 19,753,805.47
  5. Step 5: Solve for x
    x = 19,753,805.47/5,141.76
  6. Step 6: Final answer
    x = 3,841.84

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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.