Home / 6,981.12-10,471.58-1,786.96

Finding the Fourth Proportional to 6,981.12, 10,471.58 and 1,786.96

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Solution

The fourth proportional to 6,981.12, 10,471.58 and 1,786.96 is: 2,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.12 : 10,471.58 = 1,786.96 : x
  2. Step 2: Convert to fraction form
    6,981.12/10,471.58 = 1,786.96/x
  3. Step 3: Cross multiply
    6,981.12x = 10,471.58 × 1,786.96
  4. Step 4: Simplify right side
    6,981.12x = 18,712,294.60
  5. Step 5: Solve for x
    x = 18,712,294.60/6,981.12
  6. Step 6: Final answer
    x = 2,680.41

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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.