Home / 6,918.90-10,366.95-3,992.10

Finding the Fourth Proportional to 6,918.90, 10,366.95 and 3,992.10

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Solution

The fourth proportional to 6,918.90, 10,366.95 and 3,992.10 is: 5,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.90 : 10,366.95 = 3,992.10 : x
  2. Step 2: Convert to fraction form
    6,918.90/10,366.95 = 3,992.10/x
  3. Step 3: Cross multiply
    6,918.90x = 10,366.95 × 3,992.10
  4. Step 4: Simplify right side
    6,918.90x = 41,385,901.10
  5. Step 5: Solve for x
    x = 41,385,901.10/6,918.90
  6. Step 6: Final answer
    x = 5,981.57

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1.5x scale

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.