Home / 6,911.19-10,368.59-1,981.22

Finding the Fourth Proportional to 6,911.19, 10,368.59 and 1,981.22

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Solution

The fourth proportional to 6,911.19, 10,368.59 and 1,981.22 is: 2,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.19 : 10,368.59 = 1,981.22 : x
  2. Step 2: Convert to fraction form
    6,911.19/10,368.59 = 1,981.22/x
  3. Step 3: Cross multiply
    6,911.19x = 10,368.59 × 1,981.22
  4. Step 4: Simplify right side
    6,911.19x = 20,542,396.13
  5. Step 5: Solve for x
    x = 20,542,396.13/6,911.19
  6. Step 6: Final answer
    x = 2,972.34

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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.